Home / 28,555,401.60-39,406,761.60-15,502,802.40

Finding the Fourth Proportional to 28,555,401.60, 39,406,761.60 and 15,502,802.40

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Solution

The fourth proportional to 28,555,401.60, 39,406,761.60 and 15,502,802.40 is: 21,394,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,555,401.60 : 39,406,761.60 = 15,502,802.40 : x
  2. Step 2: Convert to fraction form
    28,555,401.60/39,406,761.60 = 15,502,802.40/x
  3. Step 3: Cross multiply
    28,555,401.60x = 39,406,761.60 × 15,502,802.40
  4. Step 4: Simplify right side
    28,555,401.60x = 610,915,238,308,707.88
  5. Step 5: Solve for x
    x = 610,915,238,308,707.88/28,555,401.60
  6. Step 6: Final answer
    x = 21,394,034.20

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1.5x scale

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.