Home / 429,044,348.90-643,566,523.35-141,830,012.90

Finding the Fourth Proportional to 429,044,348.90, 643,566,523.35 and 141,830,012.90

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Solution

The fourth proportional to 429,044,348.90, 643,566,523.35 and 141,830,012.90 is: 212,745,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,044,348.90 : 643,566,523.35 = 141,830,012.90 : x
  2. Step 2: Convert to fraction form
    429,044,348.90/643,566,523.35 = 141,830,012.90/x
  3. Step 3: Cross multiply
    429,044,348.90x = 643,566,523.35 × 141,830,012.90
  4. Step 4: Simplify right side
    429,044,348.90x = 91,277,048,308,738,656
  5. Step 5: Solve for x
    x = 91,277,048,308,738,656/429,044,348.90
  6. Step 6: Final answer
    x = 212,745,019.35

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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.