Home / 145,536,666.80-218,305,000.20-142,666,885.40

Finding the Fourth Proportional to 145,536,666.80, 218,305,000.20 and 142,666,885.40

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Solution

The fourth proportional to 145,536,666.80, 218,305,000.20 and 142,666,885.40 is: 214,000,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,536,666.80 : 218,305,000.20 = 142,666,885.40 : x
  2. Step 2: Convert to fraction form
    145,536,666.80/218,305,000.20 = 142,666,885.40/x
  3. Step 3: Cross multiply
    145,536,666.80x = 218,305,000.20 × 142,666,885.40
  4. Step 4: Simplify right side
    145,536,666.80x = 31,144,894,445,780,376
  5. Step 5: Solve for x
    x = 31,144,894,445,780,376/145,536,666.80
  6. Step 6: Final answer
    x = 214,000,328.10

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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.