Home / 67,156,929.60-100,710,511.20-21,720,206.40

Finding the Fourth Proportional to 67,156,929.60, 100,710,511.20 and 21,720,206.40

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Solution

The fourth proportional to 67,156,929.60, 100,710,511.20 and 21,720,206.40 is: 32,572,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,156,929.60 : 100,710,511.20 = 21,720,206.40 : x
  2. Step 2: Convert to fraction form
    67,156,929.60/100,710,511.20 = 21,720,206.40/x
  3. Step 3: Cross multiply
    67,156,929.60x = 100,710,511.20 × 21,720,206.40
  4. Step 4: Simplify right side
    67,156,929.60x = 2,187,453,089,913,511.50
  5. Step 5: Solve for x
    x = 2,187,453,089,913,511.50/67,156,929.60
  6. Step 6: Final answer
    x = 32,572,261.76

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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.