Home / 385,641,971.78-532,263,164.73-229,096,045.22

Finding the Fourth Proportional to 385,641,971.78, 532,263,164.73 and 229,096,045.22

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Solution

The fourth proportional to 385,641,971.78, 532,263,164.73 and 229,096,045.22 is: 316,198,430.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,641,971.78 : 532,263,164.73 = 229,096,045.22 : x
  2. Step 2: Convert to fraction form
    385,641,971.78/532,263,164.73 = 229,096,045.22/x
  3. Step 3: Cross multiply
    385,641,971.78x = 532,263,164.73 × 229,096,045.22
  4. Step 4: Simplify right side
    385,641,971.78x = 121,939,386,055,924,400
  5. Step 5: Solve for x
    x = 121,939,386,055,924,400/385,641,971.78
  6. Step 6: Final answer
    x = 316,198,430.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.