Home / 137,849,404.20-206,774,106.30-73,119,890.40

Finding the Fourth Proportional to 137,849,404.20, 206,774,106.30 and 73,119,890.40

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Solution

The fourth proportional to 137,849,404.20, 206,774,106.30 and 73,119,890.40 is: 109,679,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,849,404.20 : 206,774,106.30 = 73,119,890.40 : x
  2. Step 2: Convert to fraction form
    137,849,404.20/206,774,106.30 = 73,119,890.40/x
  3. Step 3: Cross multiply
    137,849,404.20x = 206,774,106.30 × 73,119,890.40
  4. Step 4: Simplify right side
    137,849,404.20x = 15,119,299,990,213,952
  5. Step 5: Solve for x
    x = 15,119,299,990,213,952/137,849,404.20
  6. Step 6: Final answer
    x = 109,679,835.60

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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.