Home / 72,845,442,600.89-100,519,964,581.18-40,291,955,609.12

Finding the Fourth Proportional to 72,845,442,600.89, 100,519,964,581.18 and 40,291,955,609.12

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Solution

The fourth proportional to 72,845,442,600.89, 100,519,964,581.18 and 40,291,955,609.12 is: 55,599,167,307.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,845,442,600.89 : 100,519,964,581.18 = 40,291,955,609.12 : x
  2. Step 2: Convert to fraction form
    72,845,442,600.89/100,519,964,581.18 = 40,291,955,609.12/x
  3. Step 3: Cross multiply
    72,845,442,600.89x = 100,519,964,581.18 × 40,291,955,609.12
  4. Step 4: Simplify right side
    72,845,442,600.89x = 4,050,145,950,735,219,032,064
  5. Step 5: Solve for x
    x = 4,050,145,950,735,219,032,064/72,845,442,600.89
  6. Step 6: Final answer
    x = 55,599,167,307.22

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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.