Home / 28,553,871.12-42,830,805.60-8,359,113.12

Finding the Fourth Proportional to 28,553,871.12, 42,830,805.60 and 8,359,113.12

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Solution

The fourth proportional to 28,553,871.12, 42,830,805.60 and 8,359,113.12 is: 12,538,669.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,553,871.12 : 42,830,805.60 = 8,359,113.12 : x
  2. Step 2: Convert to fraction form
    28,553,871.12/42,830,805.60 = 8,359,113.12/x
  3. Step 3: Cross multiply
    28,553,871.12x = 42,830,805.60 × 8,359,113.12
  4. Step 4: Simplify right side
    28,553,871.12x = 358,027,549,031,129.50
  5. Step 5: Solve for x
    x = 358,027,549,031,129.50/28,553,871.12
  6. Step 6: Final answer
    x = 12,538,669.36

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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.