Home / 785,248,082.10-1,177,872,123.15-664,315,730.10

Finding the Fourth Proportional to 785,248,082.10, 1,177,872,123.15 and 664,315,730.10

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Solution

The fourth proportional to 785,248,082.10, 1,177,872,123.15 and 664,315,730.10 is: 996,473,595.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,248,082.10 : 1,177,872,123.15 = 664,315,730.10 : x
  2. Step 2: Convert to fraction form
    785,248,082.10/1,177,872,123.15 = 664,315,730.10/x
  3. Step 3: Cross multiply
    785,248,082.10x = 1,177,872,123.15 × 664,315,730.10
  4. Step 4: Simplify right side
    785,248,082.10x = 782,478,979,454,829,440
  5. Step 5: Solve for x
    x = 782,478,979,454,829,440/785,248,082.10
  6. Step 6: Final answer
    x = 996,473,595.15

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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.