Home / 145,655,140.20-218,482,710.30-77,630,692.20

Finding the Fourth Proportional to 145,655,140.20, 218,482,710.30 and 77,630,692.20

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Solution

The fourth proportional to 145,655,140.20, 218,482,710.30 and 77,630,692.20 is: 116,446,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,655,140.20 : 218,482,710.30 = 77,630,692.20 : x
  2. Step 2: Convert to fraction form
    145,655,140.20/218,482,710.30 = 77,630,692.20/x
  3. Step 3: Cross multiply
    145,655,140.20x = 218,482,710.30 × 77,630,692.20
  4. Step 4: Simplify right side
    145,655,140.20x = 16,960,964,034,321,072
  5. Step 5: Solve for x
    x = 16,960,964,034,321,072/145,655,140.20
  6. Step 6: Final answer
    x = 116,446,038.30

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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.