Home / 156,959,268.85-216,602,072.01-86,393,370.34

Finding the Fourth Proportional to 156,959,268.85, 216,602,072.01 and 86,393,370.34

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Solution

The fourth proportional to 156,959,268.85, 216,602,072.01 and 86,393,370.34 is: 119,221,904.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,959,268.85 : 216,602,072.01 = 86,393,370.34 : x
  2. Step 2: Convert to fraction form
    156,959,268.85/216,602,072.01 = 86,393,370.34/x
  3. Step 3: Cross multiply
    156,959,268.85x = 216,602,072.01 × 86,393,370.34
  4. Step 4: Simplify right side
    156,959,268.85x = 18,712,983,023,571,280
  5. Step 5: Solve for x
    x = 18,712,983,023,571,280/156,959,268.85
  6. Step 6: Final answer
    x = 119,221,904.90

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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.