Home / 254,219,948.70-381,329,923.05-81,714,200.10

Finding the Fourth Proportional to 254,219,948.70, 381,329,923.05 and 81,714,200.10

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Solution

The fourth proportional to 254,219,948.70, 381,329,923.05 and 81,714,200.10 is: 122,571,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,219,948.70 : 381,329,923.05 = 81,714,200.10 : x
  2. Step 2: Convert to fraction form
    254,219,948.70/381,329,923.05 = 81,714,200.10/x
  3. Step 3: Cross multiply
    254,219,948.70x = 381,329,923.05 × 81,714,200.10
  4. Step 4: Simplify right side
    254,219,948.70x = 31,160,069,636,225,300
  5. Step 5: Solve for x
    x = 31,160,069,636,225,300/254,219,948.70
  6. Step 6: Final answer
    x = 122,571,300.15

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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.