Home / 100,953,476.80-151,430,215.20-72,288,030.40

Finding the Fourth Proportional to 100,953,476.80, 151,430,215.20 and 72,288,030.40

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Solution

The fourth proportional to 100,953,476.80, 151,430,215.20 and 72,288,030.40 is: 108,432,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,953,476.80 : 151,430,215.20 = 72,288,030.40 : x
  2. Step 2: Convert to fraction form
    100,953,476.80/151,430,215.20 = 72,288,030.40/x
  3. Step 3: Cross multiply
    100,953,476.80x = 151,430,215.20 × 72,288,030.40
  4. Step 4: Simplify right side
    100,953,476.80x = 10,946,591,999,856,142
  5. Step 5: Solve for x
    x = 10,946,591,999,856,142/100,953,476.80
  6. Step 6: Final answer
    x = 108,432,045.60

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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.