Home / 861,088,208.39-1,290,582,974.95-446,336,373.06

Finding the Fourth Proportional to 861,088,208.39, 1,290,582,974.95 and 446,336,373.06

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Solution

The fourth proportional to 861,088,208.39, 1,290,582,974.95 and 446,336,373.06 is: 668,960,646.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,088,208.39 : 1,290,582,974.95 = 446,336,373.06 : x
  2. Step 2: Convert to fraction form
    861,088,208.39/1,290,582,974.95 = 446,336,373.06/x
  3. Step 3: Cross multiply
    861,088,208.39x = 1,290,582,974.95 × 446,336,373.06
  4. Step 4: Simplify right side
    861,088,208.39x = 576,034,124,171,051,968
  5. Step 5: Solve for x
    x = 576,034,124,171,051,968/861,088,208.39
  6. Step 6: Final answer
    x = 668,960,646.03

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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.