Home / 156,732,934.51-216,291,588.02-86,169,745.36

Finding the Fourth Proportional to 156,732,934.51, 216,291,588.02 and 86,169,745.36

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Solution

The fourth proportional to 156,732,934.51, 216,291,588.02 and 86,169,745.36 is: 118,914,324.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,732,934.51 : 216,291,588.02 = 86,169,745.36 : x
  2. Step 2: Convert to fraction form
    156,732,934.51/216,291,588.02 = 86,169,745.36/x
  3. Step 3: Cross multiply
    156,732,934.51x = 216,291,588.02 × 86,169,745.36
  4. Step 4: Simplify right side
    156,732,934.51x = 18,637,791,063,193,428
  5. Step 5: Solve for x
    x = 18,637,791,063,193,428/156,732,934.51
  6. Step 6: Final answer
    x = 118,914,324.69

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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.