Home / 129,288,484.92-178,421,894.96-70,554,934.56

Finding the Fourth Proportional to 129,288,484.92, 178,421,894.96 and 70,554,934.56

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Solution

The fourth proportional to 129,288,484.92, 178,421,894.96 and 70,554,934.56 is: 97,367,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,288,484.92 : 178,421,894.96 = 70,554,934.56 : x
  2. Step 2: Convert to fraction form
    129,288,484.92/178,421,894.96 = 70,554,934.56/x
  3. Step 3: Cross multiply
    129,288,484.92x = 178,421,894.96 × 70,554,934.56
  4. Step 4: Simplify right side
    129,288,484.92x = 12,588,545,122,973,994
  5. Step 5: Solve for x
    x = 12,588,545,122,973,994/129,288,484.92
  6. Step 6: Final answer
    x = 97,367,875.65

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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.