Home / 1,223,246,931.16-1,688,026,310.56-714,656,785

Finding the Fourth Proportional to 1,223,246,931.16, 1,688,026,310.56 and 714,656,785

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Solution

The fourth proportional to 1,223,246,931.16, 1,688,026,310.56 and 714,656,785 is: 986,194,549.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,246,931.16 : 1,688,026,310.56 = 714,656,785 : x
  2. Step 2: Convert to fraction form
    1,223,246,931.16/1,688,026,310.56 = 714,656,785/x
  3. Step 3: Cross multiply
    1,223,246,931.16x = 1,688,026,310.56 × 714,656,785
  4. Step 4: Simplify right side
    1,223,246,931.16x = 1,206,359,456,100,221,184
  5. Step 5: Solve for x
    x = 1,206,359,456,100,221,184/1,223,246,931.16
  6. Step 6: Final answer
    x = 986,194,549.42

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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.