Home / 149,771,428.80-224,405,200.80-128,104,382.40

Finding the Fourth Proportional to 149,771,428.80, 224,405,200.80 and 128,104,382.40

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Solution

The fourth proportional to 149,771,428.80, 224,405,200.80 and 128,104,382.40 is: 191,941,079.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,771,428.80 : 224,405,200.80 = 128,104,382.40 : x
  2. Step 2: Convert to fraction form
    149,771,428.80/224,405,200.80 = 128,104,382.40/x
  3. Step 3: Cross multiply
    149,771,428.80x = 224,405,200.80 × 128,104,382.40
  4. Step 4: Simplify right side
    149,771,428.80x = 28,747,289,655,831,988
  5. Step 5: Solve for x
    x = 28,747,289,655,831,988/149,771,428.80
  6. Step 6: Final answer
    x = 191,941,079.06

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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.