Home / 615,426,711.17-849,211,051.25-490,296,271.73

Finding the Fourth Proportional to 615,426,711.17, 849,211,051.25 and 490,296,271.73

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Solution

The fourth proportional to 615,426,711.17, 849,211,051.25 and 490,296,271.73 is: 676,546,865.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,426,711.17 : 849,211,051.25 = 490,296,271.73 : x
  2. Step 2: Convert to fraction form
    615,426,711.17/849,211,051.25 = 490,296,271.73/x
  3. Step 3: Cross multiply
    615,426,711.17x = 849,211,051.25 × 490,296,271.73
  4. Step 4: Simplify right side
    615,426,711.17x = 416,365,012,336,768,704
  5. Step 5: Solve for x
    x = 416,365,012,336,768,704/615,426,711.17
  6. Step 6: Final answer
    x = 676,546,865.42

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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.