Home / 28,298,001.90-42,426,007.65-9,117,720.30

Finding the Fourth Proportional to 28,298,001.90, 42,426,007.65 and 9,117,720.30

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Solution

The fourth proportional to 28,298,001.90, 42,426,007.65 and 9,117,720.30 is: 13,669,815.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,298,001.90 : 42,426,007.65 = 9,117,720.30 : x
  2. Step 2: Convert to fraction form
    28,298,001.90/42,426,007.65 = 9,117,720.30/x
  3. Step 3: Cross multiply
    28,298,001.90x = 42,426,007.65 × 9,117,720.30
  4. Step 4: Simplify right side
    28,298,001.90x = 386,828,471,198,360.31
  5. Step 5: Solve for x
    x = 386,828,471,198,360.31/28,298,001.90
  6. Step 6: Final answer
    x = 13,669,815.72

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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.