Home / 545,331,322.60-817,996,983.90-423,503,175.40

Finding the Fourth Proportional to 545,331,322.60, 817,996,983.90 and 423,503,175.40

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Solution

The fourth proportional to 545,331,322.60, 817,996,983.90 and 423,503,175.40 is: 635,254,763.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,331,322.60 : 817,996,983.90 = 423,503,175.40 : x
  2. Step 2: Convert to fraction form
    545,331,322.60/817,996,983.90 = 423,503,175.40/x
  3. Step 3: Cross multiply
    545,331,322.60x = 817,996,983.90 × 423,503,175.40
  4. Step 4: Simplify right side
    545,331,322.60x = 346,424,320,149,272,640
  5. Step 5: Solve for x
    x = 346,424,320,149,272,640/545,331,322.60
  6. Step 6: Final answer
    x = 635,254,763.10

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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.