Home / 328,427,543.28-453,231,210.78-177,720,200.40

Finding the Fourth Proportional to 328,427,543.28, 453,231,210.78 and 177,720,200.40

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Solution

The fourth proportional to 328,427,543.28, 453,231,210.78 and 177,720,200.40 is: 245,254,526.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,427,543.28 : 453,231,210.78 = 177,720,200.40 : x
  2. Step 2: Convert to fraction form
    328,427,543.28/453,231,210.78 = 177,720,200.40/x
  3. Step 3: Cross multiply
    328,427,543.28x = 453,231,210.78 × 177,720,200.40
  4. Step 4: Simplify right side
    328,427,543.28x = 80,548,341,607,356,240
  5. Step 5: Solve for x
    x = 80,548,341,607,356,240/328,427,543.28
  6. Step 6: Final answer
    x = 245,254,526.47

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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.