Home / 238,475,203.80-357,712,805.70-221,256,515.40

Finding the Fourth Proportional to 238,475,203.80, 357,712,805.70 and 221,256,515.40

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Solution

The fourth proportional to 238,475,203.80, 357,712,805.70 and 221,256,515.40 is: 331,884,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,475,203.80 : 357,712,805.70 = 221,256,515.40 : x
  2. Step 2: Convert to fraction form
    238,475,203.80/357,712,805.70 = 221,256,515.40/x
  3. Step 3: Cross multiply
    238,475,203.80x = 357,712,805.70 × 221,256,515.40
  4. Step 4: Simplify right side
    238,475,203.80x = 79,146,288,903,139,264
  5. Step 5: Solve for x
    x = 79,146,288,903,139,264/238,475,203.80
  6. Step 6: Final answer
    x = 331,884,773.10

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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.