Home / 832,418,947.22-1,247,846,316.80-279,333,490.11

Finding the Fourth Proportional to 832,418,947.22, 1,247,846,316.80 and 279,333,490.11

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Solution

The fourth proportional to 832,418,947.22, 1,247,846,316.80 and 279,333,490.11 is: 418,737,785.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,418,947.22 : 1,247,846,316.80 = 279,333,490.11 : x
  2. Step 2: Convert to fraction form
    832,418,947.22/1,247,846,316.80 = 279,333,490.11/x
  3. Step 3: Cross multiply
    832,418,947.22x = 1,247,846,316.80 × 279,333,490.11
  4. Step 4: Simplify right side
    832,418,947.22x = 348,565,266,791,256,128
  5. Step 5: Solve for x
    x = 348,565,266,791,256,128/832,418,947.22
  6. Step 6: Final answer
    x = 418,737,785.77

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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.