Home / 739,864,934.40-1,021,013,253.92-442,507,171.36

Finding the Fourth Proportional to 739,864,934.40, 1,021,013,253.92 and 442,507,171.36

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Solution

The fourth proportional to 739,864,934.40, 1,021,013,253.92 and 442,507,171.36 is: 610,659,683.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,864,934.40 : 1,021,013,253.92 = 442,507,171.36 : x
  2. Step 2: Convert to fraction form
    739,864,934.40/1,021,013,253.92 = 442,507,171.36/x
  3. Step 3: Cross multiply
    739,864,934.40x = 1,021,013,253.92 × 442,507,171.36
  4. Step 4: Simplify right side
    739,864,934.40x = 451,805,686,913,208,640
  5. Step 5: Solve for x
    x = 451,805,686,913,208,640/739,864,934.40
  6. Step 6: Final answer
    x = 610,659,683.82

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1.5x scale

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.