Home / 39,872,088.13-55,023,503.75-21,537,373.81

Finding the Fourth Proportional to 39,872,088.13, 55,023,503.75 and 21,537,373.81

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Solution

The fourth proportional to 39,872,088.13, 55,023,503.75 and 21,537,373.81 is: 29,721,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872,088.13 : 55,023,503.75 = 21,537,373.81 : x
  2. Step 2: Convert to fraction form
    39,872,088.13/55,023,503.75 = 21,537,373.81/x
  3. Step 3: Cross multiply
    39,872,088.13x = 55,023,503.75 × 21,537,373.81
  4. Step 4: Simplify right side
    39,872,088.13x = 1,185,061,768,378,412.75
  5. Step 5: Solve for x
    x = 1,185,061,768,378,412.75/39,872,088.13
  6. Step 6: Final answer
    x = 29,721,587.81

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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.