Home / 791,211,098.90-1,186,925,785.65-459,374,386.32

Finding the Fourth Proportional to 791,211,098.90, 1,186,925,785.65 and 459,374,386.32

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Solution

The fourth proportional to 791,211,098.90, 1,186,925,785.65 and 459,374,386.32 is: 689,124,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,211,098.90 : 1,186,925,785.65 = 459,374,386.32 : x
  2. Step 2: Convert to fraction form
    791,211,098.90/1,186,925,785.65 = 459,374,386.32/x
  3. Step 3: Cross multiply
    791,211,098.90x = 1,186,925,785.65 × 459,374,386.32
  4. Step 4: Simplify right side
    791,211,098.90x = 545,243,304,384,418,048
  5. Step 5: Solve for x
    x = 545,243,304,384,418,048/791,211,098.90
  6. Step 6: Final answer
    x = 689,124,944.21

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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.