Home / 721,387,277.17-995,516,372.08-391,362,416.17

Finding the Fourth Proportional to 721,387,277.17, 995,516,372.08 and 391,362,416.17

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Solution

The fourth proportional to 721,387,277.17, 995,516,372.08 and 391,362,416.17 is: 540,081,181.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,387,277.17 : 995,516,372.08 = 391,362,416.17 : x
  2. Step 2: Convert to fraction form
    721,387,277.17/995,516,372.08 = 391,362,416.17/x
  3. Step 3: Cross multiply
    721,387,277.17x = 995,516,372.08 × 391,362,416.17
  4. Step 4: Simplify right side
    721,387,277.17x = 389,607,692,712,021,952
  5. Step 5: Solve for x
    x = 389,607,692,712,021,952/721,387,277.17
  6. Step 6: Final answer
    x = 540,081,181.14

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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.