Home / 145,655,009.20-218,482,513.80-77,630,561.20

Finding the Fourth Proportional to 145,655,009.20, 218,482,513.80 and 77,630,561.20

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Solution

The fourth proportional to 145,655,009.20, 218,482,513.80 and 77,630,561.20 is: 116,445,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,655,009.20 : 218,482,513.80 = 77,630,561.20 : x
  2. Step 2: Convert to fraction form
    145,655,009.20/218,482,513.80 = 77,630,561.20/x
  3. Step 3: Cross multiply
    145,655,009.20x = 218,482,513.80 × 77,630,561.20
  4. Step 4: Simplify right side
    145,655,009.20x = 16,960,920,158,680,746
  5. Step 5: Solve for x
    x = 16,960,920,158,680,746/145,655,009.20
  6. Step 6: Final answer
    x = 116,445,841.80

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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.