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Finding the Fourth Proportional to 1,371,934,189.04, 1,893,286,399.79 and 745,413,079.73

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Solution

The fourth proportional to 1,371,934,189.04, 1,893,286,399.79 and 745,413,079.73 is: 1,028,679,405.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,934,189.04 : 1,893,286,399.79 = 745,413,079.73 : x
  2. Step 2: Convert to fraction form
    1,371,934,189.04/1,893,286,399.79 = 745,413,079.73/x
  3. Step 3: Cross multiply
    1,371,934,189.04x = 1,893,286,399.79 × 745,413,079.73
  4. Step 4: Simplify right side
    1,371,934,189.04x = 1,411,280,446,068,921,600
  5. Step 5: Solve for x
    x = 1,411,280,446,068,921,600/1,371,934,189.04
  6. Step 6: Final answer
    x = 1,028,679,405.58

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Double scale
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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.