Home / 472,572,037.80-708,858,056.70-127,525,111.20

Finding the Fourth Proportional to 472,572,037.80, 708,858,056.70 and 127,525,111.20

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Solution

The fourth proportional to 472,572,037.80, 708,858,056.70 and 127,525,111.20 is: 191,287,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,572,037.80 : 708,858,056.70 = 127,525,111.20 : x
  2. Step 2: Convert to fraction form
    472,572,037.80/708,858,056.70 = 127,525,111.20/x
  3. Step 3: Cross multiply
    472,572,037.80x = 708,858,056.70 × 127,525,111.20
  4. Step 4: Simplify right side
    472,572,037.80x = 90,397,202,505,683,408
  5. Step 5: Solve for x
    x = 90,397,202,505,683,408/472,572,037.80
  6. Step 6: Final answer
    x = 191,287,666.80

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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.