Home / 72,974,948.04-100,703,852.10-39,935,054.52

Finding the Fourth Proportional to 72,974,948.04, 100,703,852.10 and 39,935,054.52

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Solution

The fourth proportional to 72,974,948.04, 100,703,852.10 and 39,935,054.52 is: 55,109,512.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,974,948.04 : 100,703,852.10 = 39,935,054.52 : x
  2. Step 2: Convert to fraction form
    72,974,948.04/100,703,852.10 = 39,935,054.52/x
  3. Step 3: Cross multiply
    72,974,948.04x = 100,703,852.10 × 39,935,054.52
  4. Step 4: Simplify right side
    72,974,948.04x = 4,021,613,823,987,516.50
  5. Step 5: Solve for x
    x = 4,021,613,823,987,516.50/72,974,948.04
  6. Step 6: Final answer
    x = 55,109,512.68

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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.