Home / 145,006,893.20-217,510,339.80-87,676,000.40

Finding the Fourth Proportional to 145,006,893.20, 217,510,339.80 and 87,676,000.40

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Solution

The fourth proportional to 145,006,893.20, 217,510,339.80 and 87,676,000.40 is: 131,514,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,006,893.20 : 217,510,339.80 = 87,676,000.40 : x
  2. Step 2: Convert to fraction form
    145,006,893.20/217,510,339.80 = 87,676,000.40/x
  3. Step 3: Cross multiply
    145,006,893.20x = 217,510,339.80 × 87,676,000.40
  4. Step 4: Simplify right side
    145,006,893.20x = 19,070,436,639,308,940
  5. Step 5: Solve for x
    x = 19,070,436,639,308,940/145,006,893.20
  6. Step 6: Final answer
    x = 131,514,000.60

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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.