Home / 838,295,999.40-1,257,443,999.10-292,980,671.40

Finding the Fourth Proportional to 838,295,999.40, 1,257,443,999.10 and 292,980,671.40

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Solution

The fourth proportional to 838,295,999.40, 1,257,443,999.10 and 292,980,671.40 is: 439,471,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,295,999.40 : 1,257,443,999.10 = 292,980,671.40 : x
  2. Step 2: Convert to fraction form
    838,295,999.40/1,257,443,999.10 = 292,980,671.40/x
  3. Step 3: Cross multiply
    838,295,999.40x = 1,257,443,999.10 × 292,980,671.40
  4. Step 4: Simplify right side
    838,295,999.40x = 368,406,787,104,218,944
  5. Step 5: Solve for x
    x = 368,406,787,104,218,944/838,295,999.40
  6. Step 6: Final answer
    x = 439,471,007.10

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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.