Home / 528,063,503.80-792,059,826.30-139,878,002.20

Finding the Fourth Proportional to 528,063,503.80, 792,059,826.30 and 139,878,002.20

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Solution

The fourth proportional to 528,063,503.80, 792,059,826.30 and 139,878,002.20 is: 209,807,618.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,063,503.80 : 792,059,826.30 = 139,878,002.20 : x
  2. Step 2: Convert to fraction form
    528,063,503.80/792,059,826.30 = 139,878,002.20/x
  3. Step 3: Cross multiply
    528,063,503.80x = 792,059,826.30 × 139,878,002.20
  4. Step 4: Simplify right side
    528,063,503.80x = 110,791,746,125,723,008
  5. Step 5: Solve for x
    x = 110,791,746,125,723,008/528,063,503.80
  6. Step 6: Final answer
    x = 209,807,618.46

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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.