Home / 128,946,208.20-193,419,312.30-88,131,539.40

Finding the Fourth Proportional to 128,946,208.20, 193,419,312.30 and 88,131,539.40

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Solution

The fourth proportional to 128,946,208.20, 193,419,312.30 and 88,131,539.40 is: 132,197,309.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,946,208.20 : 193,419,312.30 = 88,131,539.40 : x
  2. Step 2: Convert to fraction form
    128,946,208.20/193,419,312.30 = 88,131,539.40/x
  3. Step 3: Cross multiply
    128,946,208.20x = 193,419,312.30 × 88,131,539.40
  4. Step 4: Simplify right side
    128,946,208.20x = 17,046,341,742,688,356
  5. Step 5: Solve for x
    x = 17,046,341,742,688,356/128,946,208.20
  6. Step 6: Final answer
    x = 132,197,309.10

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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.