Home / 238,478,743.80-357,718,115.70-221,260,055.40

Finding the Fourth Proportional to 238,478,743.80, 357,718,115.70 and 221,260,055.40

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Solution

The fourth proportional to 238,478,743.80, 357,718,115.70 and 221,260,055.40 is: 331,890,083.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,478,743.80 : 357,718,115.70 = 221,260,055.40 : x
  2. Step 2: Convert to fraction form
    238,478,743.80/357,718,115.70 = 221,260,055.40/x
  3. Step 3: Cross multiply
    238,478,743.80x = 357,718,115.70 × 221,260,055.40
  4. Step 4: Simplify right side
    238,478,743.80x = 79,148,730,097,365,616
  5. Step 5: Solve for x
    x = 79,148,730,097,365,616/238,478,743.80
  6. Step 6: Final answer
    x = 331,890,083.10

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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.