Home / 825,637,332.32-1,139,123,008.92-468,346,223.60

Finding the Fourth Proportional to 825,637,332.32, 1,139,123,008.92 and 468,346,223.60

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Solution

The fourth proportional to 825,637,332.32, 1,139,123,008.92 and 468,346,223.60 is: 646,172,282.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,637,332.32 : 1,139,123,008.92 = 468,346,223.60 : x
  2. Step 2: Convert to fraction form
    825,637,332.32/1,139,123,008.92 = 468,346,223.60/x
  3. Step 3: Cross multiply
    825,637,332.32x = 1,139,123,008.92 × 468,346,223.60
  4. Step 4: Simplify right side
    825,637,332.32x = 533,503,959,443,551,168
  5. Step 5: Solve for x
    x = 533,503,959,443,551,168/825,637,332.32
  6. Step 6: Final answer
    x = 646,172,282.38

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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.