Home / 639,567,412.16-959,705,850-312,045,617.12

Finding the Fourth Proportional to 639,567,412.16, 959,705,850 and 312,045,617.12

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Solution

The fourth proportional to 639,567,412.16, 959,705,850 and 312,045,617.12 is: 468,241,499.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,567,412.16 : 959,705,850 = 312,045,617.12 : x
  2. Step 2: Convert to fraction form
    639,567,412.16/959,705,850 = 312,045,617.12/x
  3. Step 3: Cross multiply
    639,567,412.16x = 959,705,850 × 312,045,617.12
  4. Step 4: Simplify right side
    639,567,412.16x = 299,472,004,216,924,160
  5. Step 5: Solve for x
    x = 299,472,004,216,924,160/639,567,412.16
  6. Step 6: Final answer
    x = 468,241,499.68

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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.