Home / 171,648,018.40-257,472,027.60-42,254,600.80

Finding the Fourth Proportional to 171,648,018.40, 257,472,027.60 and 42,254,600.80

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Solution

The fourth proportional to 171,648,018.40, 257,472,027.60 and 42,254,600.80 is: 63,381,901.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,648,018.40 : 257,472,027.60 = 42,254,600.80 : x
  2. Step 2: Convert to fraction form
    171,648,018.40/257,472,027.60 = 42,254,600.80/x
  3. Step 3: Cross multiply
    171,648,018.40x = 257,472,027.60 × 42,254,600.80
  4. Step 4: Simplify right side
    171,648,018.40x = 10,879,377,743,404,582
  5. Step 5: Solve for x
    x = 10,879,377,743,404,582/171,648,018.40
  6. Step 6: Final answer
    x = 63,381,901.20

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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.