Home / 289,387,587.70-434,081,381.55-73,965,430.90

Finding the Fourth Proportional to 289,387,587.70, 434,081,381.55 and 73,965,430.90

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Solution

The fourth proportional to 289,387,587.70, 434,081,381.55 and 73,965,430.90 is: 110,948,146.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,387,587.70 : 434,081,381.55 = 73,965,430.90 : x
  2. Step 2: Convert to fraction form
    289,387,587.70/434,081,381.55 = 73,965,430.90/x
  3. Step 3: Cross multiply
    289,387,587.70x = 434,081,381.55 × 73,965,430.90
  4. Step 4: Simplify right side
    289,387,587.70x = 32,107,016,432,013,064
  5. Step 5: Solve for x
    x = 32,107,016,432,013,064/289,387,587.70
  6. Step 6: Final answer
    x = 110,948,146.35

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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.