Home / 639,638,066.71-882,746,209.00-353,523,437.91

Finding the Fourth Proportional to 639,638,066.71, 882,746,209.00 and 353,523,437.91

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Solution

The fourth proportional to 639,638,066.71, 882,746,209.00 and 353,523,437.91 is: 487,887,589.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,638,066.71 : 882,746,209.00 = 353,523,437.91 : x
  2. Step 2: Convert to fraction form
    639,638,066.71/882,746,209.00 = 353,523,437.91/x
  3. Step 3: Cross multiply
    639,638,066.71x = 882,746,209.00 × 353,523,437.91
  4. Step 4: Simplify right side
    639,638,066.71x = 312,071,474,608,643,840
  5. Step 5: Solve for x
    x = 312,071,474,608,643,840/639,638,066.71
  6. Step 6: Final answer
    x = 487,887,589.64

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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.