Home / 20,478,892.02-28,260,967.23-11,186,590.79

Finding the Fourth Proportional to 20,478,892.02, 28,260,967.23 and 11,186,590.79

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Solution

The fourth proportional to 20,478,892.02, 28,260,967.23 and 11,186,590.79 is: 15,437,547.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,478,892.02 : 28,260,967.23 = 11,186,590.79 : x
  2. Step 2: Convert to fraction form
    20,478,892.02/28,260,967.23 = 11,186,590.79/x
  3. Step 3: Cross multiply
    20,478,892.02x = 28,260,967.23 × 11,186,590.79
  4. Step 4: Simplify right side
    20,478,892.02x = 316,143,875,534,372.06
  5. Step 5: Solve for x
    x = 316,143,875,534,372.06/20,478,892.02
  6. Step 6: Final answer
    x = 15,437,547.85

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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.