Home / 158,019,938.40-221,379,079.20-158,019,938.40

Finding the Fourth Proportional to 158,019,938.40, 221,379,079.20 and 158,019,938.40

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Solution

The fourth proportional to 158,019,938.40, 221,379,079.20 and 158,019,938.40 is: 221,379,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,019,938.40 : 221,379,079.20 = 158,019,938.40 : x
  2. Step 2: Convert to fraction form
    158,019,938.40/221,379,079.20 = 158,019,938.40/x
  3. Step 3: Cross multiply
    158,019,938.40x = 221,379,079.20 × 158,019,938.40
  4. Step 4: Simplify right side
    158,019,938.40x = 34,982,308,458,232,720
  5. Step 5: Solve for x
    x = 34,982,308,458,232,720/158,019,938.40
  6. Step 6: Final answer
    x = 221,379,079.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.