Home / 109,156,988.20-163,735,482.30-100,228,779.40

Finding the Fourth Proportional to 109,156,988.20, 163,735,482.30 and 100,228,779.40

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Solution

The fourth proportional to 109,156,988.20, 163,735,482.30 and 100,228,779.40 is: 150,343,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,156,988.20 : 163,735,482.30 = 100,228,779.40 : x
  2. Step 2: Convert to fraction form
    109,156,988.20/163,735,482.30 = 100,228,779.40/x
  3. Step 3: Cross multiply
    109,156,988.20x = 163,735,482.30 × 100,228,779.40
  4. Step 4: Simplify right side
    109,156,988.20x = 16,411,007,535,399,306
  5. Step 5: Solve for x
    x = 16,411,007,535,399,306/109,156,988.20
  6. Step 6: Final answer
    x = 150,343,169.10

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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.