Home / 820,871,033.06-1,231,314,521.16-656,700,947.48

Finding the Fourth Proportional to 820,871,033.06, 1,231,314,521.16 and 656,700,947.48

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Solution

The fourth proportional to 820,871,033.06, 1,231,314,521.16 and 656,700,947.48 is: 985,057,798.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,871,033.06 : 1,231,314,521.16 = 656,700,947.48 : x
  2. Step 2: Convert to fraction form
    820,871,033.06/1,231,314,521.16 = 656,700,947.48/x
  3. Step 3: Cross multiply
    820,871,033.06x = 1,231,314,521.16 × 656,700,947.48
  4. Step 4: Simplify right side
    820,871,033.06x = 808,605,412,691,654,528
  5. Step 5: Solve for x
    x = 808,605,412,691,654,528/820,871,033.06
  6. Step 6: Final answer
    x = 985,057,798.52

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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.