Home / 100,953,478.80-151,430,218.20-72,288,032.40

Finding the Fourth Proportional to 100,953,478.80, 151,430,218.20 and 72,288,032.40

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Solution

The fourth proportional to 100,953,478.80, 151,430,218.20 and 72,288,032.40 is: 108,432,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,953,478.80 : 151,430,218.20 = 72,288,032.40 : x
  2. Step 2: Convert to fraction form
    100,953,478.80/151,430,218.20 = 72,288,032.40/x
  3. Step 3: Cross multiply
    100,953,478.80x = 151,430,218.20 × 72,288,032.40
  4. Step 4: Simplify right side
    100,953,478.80x = 10,946,592,519,580,670
  5. Step 5: Solve for x
    x = 10,946,592,519,580,670/100,953,478.80
  6. Step 6: Final answer
    x = 108,432,048.60

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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.