Home / 747,488,432.80-1,121,232,649.20-359,217,638.20

Finding the Fourth Proportional to 747,488,432.80, 1,121,232,649.20 and 359,217,638.20

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Solution

The fourth proportional to 747,488,432.80, 1,121,232,649.20 and 359,217,638.20 is: 538,826,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,488,432.80 : 1,121,232,649.20 = 359,217,638.20 : x
  2. Step 2: Convert to fraction form
    747,488,432.80/1,121,232,649.20 = 359,217,638.20/x
  3. Step 3: Cross multiply
    747,488,432.80x = 1,121,232,649.20 × 359,217,638.20
  4. Step 4: Simplify right side
    747,488,432.80x = 402,766,544,118,353,152
  5. Step 5: Solve for x
    x = 402,766,544,118,353,152/747,488,432.80
  6. Step 6: Final answer
    x = 538,826,457.30

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Double scale
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1.5x scale

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.