Home / 630,088,659.40-945,132,989.10-545,154,003.40

Finding the Fourth Proportional to 630,088,659.40, 945,132,989.10 and 545,154,003.40

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Solution

The fourth proportional to 630,088,659.40, 945,132,989.10 and 545,154,003.40 is: 817,731,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,088,659.40 : 945,132,989.10 = 545,154,003.40 : x
  2. Step 2: Convert to fraction form
    630,088,659.40/945,132,989.10 = 545,154,003.40/x
  3. Step 3: Cross multiply
    630,088,659.40x = 945,132,989.10 × 545,154,003.40
  4. Step 4: Simplify right side
    630,088,659.40x = 515,243,032,753,273,536
  5. Step 5: Solve for x
    x = 515,243,032,753,273,536/630,088,659.40
  6. Step 6: Final answer
    x = 817,731,005.10

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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.