Home / 12,791,808,775.70-19,187,713,163.55-9,885,849,146.90

Finding the Fourth Proportional to 12,791,808,775.70, 19,187,713,163.55 and 9,885,849,146.90

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Solution

The fourth proportional to 12,791,808,775.70, 19,187,713,163.55 and 9,885,849,146.90 is: 14,828,773,720.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791,808,775.70 : 19,187,713,163.55 = 9,885,849,146.90 : x
  2. Step 2: Convert to fraction form
    12,791,808,775.70/19,187,713,163.55 = 9,885,849,146.90/x
  3. Step 3: Cross multiply
    12,791,808,775.70x = 19,187,713,163.55 × 9,885,849,146.90
  4. Step 4: Simplify right side
    12,791,808,775.70x = 189,686,837,808,842,637,312
  5. Step 5: Solve for x
    x = 189,686,837,808,842,637,312/12,791,808,775.70
  6. Step 6: Final answer
    x = 14,828,773,720.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.