Home / 145,655,128.20-218,482,692.30-77,630,680.20

Finding the Fourth Proportional to 145,655,128.20, 218,482,692.30 and 77,630,680.20

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Solution

The fourth proportional to 145,655,128.20, 218,482,692.30 and 77,630,680.20 is: 116,446,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,655,128.20 : 218,482,692.30 = 77,630,680.20 : x
  2. Step 2: Convert to fraction form
    145,655,128.20/218,482,692.30 = 77,630,680.20/x
  3. Step 3: Cross multiply
    145,655,128.20x = 218,482,692.30 × 77,630,680.20
  4. Step 4: Simplify right side
    145,655,128.20x = 16,960,960,015,176,304
  5. Step 5: Solve for x
    x = 16,960,960,015,176,304/145,655,128.20
  6. Step 6: Final answer
    x = 116,446,020.30

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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.