Home / 130,512,429.38-180,056,179.77-74,728,038.98

Finding the Fourth Proportional to 130,512,429.38, 180,056,179.77 and 74,728,038.98

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Solution

The fourth proportional to 130,512,429.38, 180,056,179.77 and 74,728,038.98 is: 103,095,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,512,429.38 : 180,056,179.77 = 74,728,038.98 : x
  2. Step 2: Convert to fraction form
    130,512,429.38/180,056,179.77 = 74,728,038.98/x
  3. Step 3: Cross multiply
    130,512,429.38x = 180,056,179.77 × 74,728,038.98
  4. Step 4: Simplify right side
    130,512,429.38x = 13,455,245,220,442,448
  5. Step 5: Solve for x
    x = 13,455,245,220,442,448/130,512,429.38
  6. Step 6: Final answer
    x = 103,095,508.10

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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.