Home / 719,331,488.19-1,079,427,693.42-310,387,638.69

Finding the Fourth Proportional to 719,331,488.19, 1,079,427,693.42 and 310,387,638.69

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Solution

The fourth proportional to 719,331,488.19, 1,079,427,693.42 and 310,387,638.69 is: 465,767,199.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,331,488.19 : 1,079,427,693.42 = 310,387,638.69 : x
  2. Step 2: Convert to fraction form
    719,331,488.19/1,079,427,693.42 = 310,387,638.69/x
  3. Step 3: Cross multiply
    719,331,488.19x = 1,079,427,693.42 × 310,387,638.69
  4. Step 4: Simplify right side
    719,331,488.19x = 335,041,012,897,227,072
  5. Step 5: Solve for x
    x = 335,041,012,897,227,072/719,331,488.19
  6. Step 6: Final answer
    x = 465,767,199.68

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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.