Home / 147,905,612.55-221,433,266.03-90,509,984.55

Finding the Fourth Proportional to 147,905,612.55, 221,433,266.03 and 90,509,984.55

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Solution

The fourth proportional to 147,905,612.55, 221,433,266.03 and 90,509,984.55 is: 135,504,807.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,905,612.55 : 221,433,266.03 = 90,509,984.55 : x
  2. Step 2: Convert to fraction form
    147,905,612.55/221,433,266.03 = 90,509,984.55/x
  3. Step 3: Cross multiply
    147,905,612.55x = 221,433,266.03 × 90,509,984.55
  4. Step 4: Simplify right side
    147,905,612.55x = 20,041,921,486,778,788
  5. Step 5: Solve for x
    x = 20,041,921,486,778,788/147,905,612.55
  6. Step 6: Final answer
    x = 135,504,807.03

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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.