Home / 12,791,808,776.70-19,187,713,165.05-9,885,849,147.90

Finding the Fourth Proportional to 12,791,808,776.70, 19,187,713,165.05 and 9,885,849,147.90

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Solution

The fourth proportional to 12,791,808,776.70, 19,187,713,165.05 and 9,885,849,147.90 is: 14,828,773,721.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791,808,776.70 : 19,187,713,165.05 = 9,885,849,147.90 : x
  2. Step 2: Convert to fraction form
    12,791,808,776.70/19,187,713,165.05 = 9,885,849,147.90/x
  3. Step 3: Cross multiply
    12,791,808,776.70x = 19,187,713,165.05 × 9,885,849,147.90
  4. Step 4: Simplify right side
    12,791,808,776.70x = 189,686,837,842,859,130,880
  5. Step 5: Solve for x
    x = 189,686,837,842,859,130,880/12,791,808,776.70
  6. Step 6: Final answer
    x = 14,828,773,721.85

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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.