Home / 554,801,836.34-832,098,711.39-278,378,830.83

Finding the Fourth Proportional to 554,801,836.34, 832,098,711.39 and 278,378,830.83

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Solution

The fourth proportional to 554,801,836.34, 832,098,711.39 and 278,378,830.83 is: 417,516,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,801,836.34 : 832,098,711.39 = 278,378,830.83 : x
  2. Step 2: Convert to fraction form
    554,801,836.34/832,098,711.39 = 278,378,830.83/x
  3. Step 3: Cross multiply
    554,801,836.34x = 832,098,711.39 × 278,378,830.83
  4. Step 4: Simplify right side
    554,801,836.34x = 231,638,666,411,897,792
  5. Step 5: Solve for x
    x = 231,638,666,411,897,792/554,801,836.34
  6. Step 6: Final answer
    x = 417,516,041.30

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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.