Home / 714,836,873.32-986,191,217.72-413,366,479.40

Finding the Fourth Proportional to 714,836,873.32, 986,191,217.72 and 413,366,479.40

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Solution

The fourth proportional to 714,836,873.32, 986,191,217.72 and 413,366,479.40 is: 570,281,706.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,836,873.32 : 986,191,217.72 = 413,366,479.40 : x
  2. Step 2: Convert to fraction form
    714,836,873.32/986,191,217.72 = 413,366,479.40/x
  3. Step 3: Cross multiply
    714,836,873.32x = 986,191,217.72 × 413,366,479.40
  4. Step 4: Simplify right side
    714,836,873.32x = 407,658,391,686,064,064
  5. Step 5: Solve for x
    x = 407,658,391,686,064,064/714,836,873.32
  6. Step 6: Final answer
    x = 570,281,706.08

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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.