Home / 138,833,008.80-208,249,513.20-103,001,200.80

Finding the Fourth Proportional to 138,833,008.80, 208,249,513.20 and 103,001,200.80

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Solution

The fourth proportional to 138,833,008.80, 208,249,513.20 and 103,001,200.80 is: 154,501,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,833,008.80 : 208,249,513.20 = 103,001,200.80 : x
  2. Step 2: Convert to fraction form
    138,833,008.80/208,249,513.20 = 103,001,200.80/x
  3. Step 3: Cross multiply
    138,833,008.80x = 208,249,513.20 × 103,001,200.80
  4. Step 4: Simplify right side
    138,833,008.80x = 21,449,949,925,615,448
  5. Step 5: Solve for x
    x = 21,449,949,925,615,448/138,833,008.80
  6. Step 6: Final answer
    x = 154,501,801.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.