Home / 100,039,237.19-138,054,147.35-54,254,149.19

Finding the Fourth Proportional to 100,039,237.19, 138,054,147.35 and 54,254,149.19

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Solution

The fourth proportional to 100,039,237.19, 138,054,147.35 and 54,254,149.19 is: 74,870,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,039,237.19 : 138,054,147.35 = 54,254,149.19 : x
  2. Step 2: Convert to fraction form
    100,039,237.19/138,054,147.35 = 54,254,149.19/x
  3. Step 3: Cross multiply
    100,039,237.19x = 138,054,147.35 × 54,254,149.19
  4. Step 4: Simplify right side
    100,039,237.19x = 7,490,010,306,625,142
  5. Step 5: Solve for x
    x = 7,490,010,306,625,142/100,039,237.19
  6. Step 6: Final answer
    x = 74,870,725.90

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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.