Home / 38,437,978.68-53,044,417.08-21,034,328.40

Finding the Fourth Proportional to 38,437,978.68, 53,044,417.08 and 21,034,328.40

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Solution

The fourth proportional to 38,437,978.68, 53,044,417.08 and 21,034,328.40 is: 29,027,376.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,437,978.68 : 53,044,417.08 = 21,034,328.40 : x
  2. Step 2: Convert to fraction form
    38,437,978.68/53,044,417.08 = 21,034,328.40/x
  3. Step 3: Cross multiply
    38,437,978.68x = 53,044,417.08 × 21,034,328.40
  4. Step 4: Simplify right side
    38,437,978.68x = 1,115,753,688,647,289
  5. Step 5: Solve for x
    x = 1,115,753,688,647,289/38,437,978.68
  6. Step 6: Final answer
    x = 29,027,376.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.