Home / 527,128,337.94-727,435,851.17-288,973,099.41

Finding the Fourth Proportional to 527,128,337.94, 727,435,851.17 and 288,973,099.41

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Solution

The fourth proportional to 527,128,337.94, 727,435,851.17 and 288,973,099.41 is: 398,782,189.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,128,337.94 : 727,435,851.17 = 288,973,099.41 : x
  2. Step 2: Convert to fraction form
    527,128,337.94/727,435,851.17 = 288,973,099.41/x
  3. Step 3: Cross multiply
    527,128,337.94x = 727,435,851.17 × 288,973,099.41
  4. Step 4: Simplify right side
    527,128,337.94x = 210,209,392,533,101,504
  5. Step 5: Solve for x
    x = 210,209,392,533,101,504/527,128,337.94
  6. Step 6: Final answer
    x = 398,782,189.09

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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.