Home / 100,039,220.25-138,054,123.95-54,254,132.25

Finding the Fourth Proportional to 100,039,220.25, 138,054,123.95 and 54,254,132.25

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Solution

The fourth proportional to 100,039,220.25, 138,054,123.95 and 54,254,132.25 is: 74,870,702.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,039,220.25 : 138,054,123.95 = 54,254,132.25 : x
  2. Step 2: Convert to fraction form
    100,039,220.25/138,054,123.95 = 54,254,132.25/x
  3. Step 3: Cross multiply
    100,039,220.25x = 138,054,123.95 × 54,254,132.25
  4. Step 4: Simplify right side
    100,039,220.25x = 7,490,006,698,169,921
  5. Step 5: Solve for x
    x = 7,490,006,698,169,921/100,039,220.25
  6. Step 6: Final answer
    x = 74,870,702.51

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1.5x scale

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.