Home / 10,400,926.90-15,601,390.35-7,881,502.90

Finding the Fourth Proportional to 10,400,926.90, 15,601,390.35 and 7,881,502.90

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Solution

The fourth proportional to 10,400,926.90, 15,601,390.35 and 7,881,502.90 is: 11,822,254.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400,926.90 : 15,601,390.35 = 7,881,502.90 : x
  2. Step 2: Convert to fraction form
    10,400,926.90/15,601,390.35 = 7,881,502.90/x
  3. Step 3: Cross multiply
    10,400,926.90x = 15,601,390.35 × 7,881,502.90
  4. Step 4: Simplify right side
    10,400,926.90x = 122,962,403,287,557.02
  5. Step 5: Solve for x
    x = 122,962,403,287,557.02/10,400,926.90
  6. Step 6: Final answer
    x = 11,822,254.35

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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.