Home / 156,239,013.14-234,371,299.09-78,475,931.90

Finding the Fourth Proportional to 156,239,013.14, 234,371,299.09 and 78,475,931.90

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Solution

The fourth proportional to 156,239,013.14, 234,371,299.09 and 78,475,931.90 is: 117,720,316.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,239,013.14 : 234,371,299.09 = 78,475,931.90 : x
  2. Step 2: Convert to fraction form
    156,239,013.14/234,371,299.09 = 78,475,931.90/x
  3. Step 3: Cross multiply
    156,239,013.14x = 234,371,299.09 × 78,475,931.90
  4. Step 4: Simplify right side
    156,239,013.14x = 18,392,506,106,701,372
  5. Step 5: Solve for x
    x = 18,392,506,106,701,372/156,239,013.14
  6. Step 6: Final answer
    x = 117,720,316.69

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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.