Home / 615,426,711.92-849,211,052.29-490,296,272.48

Finding the Fourth Proportional to 615,426,711.92, 849,211,052.29 and 490,296,272.48

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Solution

The fourth proportional to 615,426,711.92, 849,211,052.29 and 490,296,272.48 is: 676,546,866.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,426,711.92 : 849,211,052.29 = 490,296,272.48 : x
  2. Step 2: Convert to fraction form
    615,426,711.92/849,211,052.29 = 490,296,272.48/x
  3. Step 3: Cross multiply
    615,426,711.92x = 849,211,052.29 × 490,296,272.48
  4. Step 4: Simplify right side
    615,426,711.92x = 416,365,013,479,907,840
  5. Step 5: Solve for x
    x = 416,365,013,479,907,840/615,426,711.92
  6. Step 6: Final answer
    x = 676,546,866.46

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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.