Home / 10,331,338.90-15,497,008.35-9,215,312.80

Finding the Fourth Proportional to 10,331,338.90, 15,497,008.35 and 9,215,312.80

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Solution

The fourth proportional to 10,331,338.90, 15,497,008.35 and 9,215,312.80 is: 13,822,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,331,338.90 : 15,497,008.35 = 9,215,312.80 : x
  2. Step 2: Convert to fraction form
    10,331,338.90/15,497,008.35 = 9,215,312.80/x
  3. Step 3: Cross multiply
    10,331,338.90x = 15,497,008.35 × 9,215,312.80
  4. Step 4: Simplify right side
    10,331,338.90x = 142,809,779,409,461.88
  5. Step 5: Solve for x
    x = 142,809,779,409,461.88/10,331,338.90
  6. Step 6: Final answer
    x = 13,822,969.20

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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.