Home / 156,959,268.14-216,602,071.09-86,393,369.64

Finding the Fourth Proportional to 156,959,268.14, 216,602,071.09 and 86,393,369.64

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Solution

The fourth proportional to 156,959,268.14, 216,602,071.09 and 86,393,369.64 is: 119,221,903.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,959,268.14 : 216,602,071.09 = 86,393,369.64 : x
  2. Step 2: Convert to fraction form
    156,959,268.14/216,602,071.09 = 86,393,369.64/x
  3. Step 3: Cross multiply
    156,959,268.14x = 216,602,071.09 × 86,393,369.64
  4. Step 4: Simplify right side
    156,959,268.14x = 18,712,982,791,722,480
  5. Step 5: Solve for x
    x = 18,712,982,791,722,480/156,959,268.14
  6. Step 6: Final answer
    x = 119,221,903.96

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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.