Home / 142,595,999.40-213,893,999.10-66,068,495.40

Finding the Fourth Proportional to 142,595,999.40, 213,893,999.10 and 66,068,495.40

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Solution

The fourth proportional to 142,595,999.40, 213,893,999.10 and 66,068,495.40 is: 99,102,743.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,595,999.40 : 213,893,999.10 = 66,068,495.40 : x
  2. Step 2: Convert to fraction form
    142,595,999.40/213,893,999.10 = 66,068,495.40/x
  3. Step 3: Cross multiply
    142,595,999.40x = 213,893,999.10 × 66,068,495.40
  4. Step 4: Simplify right side
    142,595,999.40x = 14,131,654,695,625,954
  5. Step 5: Solve for x
    x = 14,131,654,695,625,954/142,595,999.40
  6. Step 6: Final answer
    x = 99,102,743.10

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1.5x scale

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.