Home / 145,655,106.20-218,482,659.30-77,630,658.20

Finding the Fourth Proportional to 145,655,106.20, 218,482,659.30 and 77,630,658.20

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Solution

The fourth proportional to 145,655,106.20, 218,482,659.30 and 77,630,658.20 is: 116,445,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,655,106.20 : 218,482,659.30 = 77,630,658.20 : x
  2. Step 2: Convert to fraction form
    145,655,106.20/218,482,659.30 = 77,630,658.20/x
  3. Step 3: Cross multiply
    145,655,106.20x = 218,482,659.30 × 77,630,658.20
  4. Step 4: Simplify right side
    145,655,106.20x = 16,960,952,646,745,352
  5. Step 5: Solve for x
    x = 16,960,952,646,745,352/145,655,106.20
  6. Step 6: Final answer
    x = 116,445,987.30

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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.