Home / 10,287,307.80-15,415,215.30-9,720,437.40

Finding the Fourth Proportional to 10,287,307.80, 15,415,215.30 and 9,720,437.40

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Solution

The fourth proportional to 10,287,307.80, 15,415,215.30 and 9,720,437.40 is: 14,565,777.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287,307.80 : 15,415,215.30 = 9,720,437.40 : x
  2. Step 2: Convert to fraction form
    10,287,307.80/15,415,215.30 = 9,720,437.40/x
  3. Step 3: Cross multiply
    10,287,307.80x = 15,415,215.30 × 9,720,437.40
  4. Step 4: Simplify right side
    10,287,307.80x = 149,842,635,331,172.22
  5. Step 5: Solve for x
    x = 149,842,635,331,172.22/10,287,307.80
  6. Step 6: Final answer
    x = 14,565,777.39

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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.