Home / 12,948,700.70-19,423,051.05-4,428,278.30

Finding the Fourth Proportional to 12,948,700.70, 19,423,051.05 and 4,428,278.30

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Solution

The fourth proportional to 12,948,700.70, 19,423,051.05 and 4,428,278.30 is: 6,642,417.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,700.70 : 19,423,051.05 = 4,428,278.30 : x
  2. Step 2: Convert to fraction form
    12,948,700.70/19,423,051.05 = 4,428,278.30/x
  3. Step 3: Cross multiply
    12,948,700.70x = 19,423,051.05 × 4,428,278.30
  4. Step 4: Simplify right side
    12,948,700.70x = 86,010,675,484,507.22
  5. Step 5: Solve for x
    x = 86,010,675,484,507.22/12,948,700.70
  6. Step 6: Final answer
    x = 6,642,417.45

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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.