Home / 429,255,967.80-644,096,528.10-245,164,805.40

Finding the Fourth Proportional to 429,255,967.80, 644,096,528.10 and 245,164,805.40

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Solution

The fourth proportional to 429,255,967.80, 644,096,528.10 and 245,164,805.40 is: 367,868,618.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,255,967.80 : 644,096,528.10 = 245,164,805.40 : x
  2. Step 2: Convert to fraction form
    429,255,967.80/644,096,528.10 = 245,164,805.40/x
  3. Step 3: Cross multiply
    429,255,967.80x = 644,096,528.10 × 245,164,805.40
  4. Step 4: Simplify right side
    429,255,967.80x = 157,909,799,970,452,128
  5. Step 5: Solve for x
    x = 157,909,799,970,452,128/429,255,967.80
  6. Step 6: Final answer
    x = 367,868,618.76

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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.