Home / 100,838,812.10-151,258,218.15-66,401,435.30

Finding the Fourth Proportional to 100,838,812.10, 151,258,218.15 and 66,401,435.30

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Solution

The fourth proportional to 100,838,812.10, 151,258,218.15 and 66,401,435.30 is: 99,602,152.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,838,812.10 : 151,258,218.15 = 66,401,435.30 : x
  2. Step 2: Convert to fraction form
    100,838,812.10/151,258,218.15 = 66,401,435.30/x
  3. Step 3: Cross multiply
    100,838,812.10x = 151,258,218.15 × 66,401,435.30
  4. Step 4: Simplify right side
    100,838,812.10x = 10,043,762,786,080,510
  5. Step 5: Solve for x
    x = 10,043,762,786,080,510/100,838,812.10
  6. Step 6: Final answer
    x = 99,602,152.95

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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.