Home / 129,288,446.40-178,421,841.82-70,554,896.04

Finding the Fourth Proportional to 129,288,446.40, 178,421,841.82 and 70,554,896.04

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Solution

The fourth proportional to 129,288,446.40, 178,421,841.82 and 70,554,896.04 is: 97,367,822.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,288,446.40 : 178,421,841.82 = 70,554,896.04 : x
  2. Step 2: Convert to fraction form
    129,288,446.40/178,421,841.82 = 70,554,896.04/x
  3. Step 3: Cross multiply
    129,288,446.40x = 178,421,841.82 × 70,554,896.04
  4. Step 4: Simplify right side
    129,288,446.40x = 12,588,534,500,875,426
  5. Step 5: Solve for x
    x = 12,588,534,500,875,426/129,288,446.40
  6. Step 6: Final answer
    x = 97,367,822.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.