Home / 40,117,088.92-55,360,030.62-21,781,954.84

Finding the Fourth Proportional to 40,117,088.92, 55,360,030.62 and 21,781,954.84

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Solution

The fourth proportional to 40,117,088.92, 55,360,030.62 and 21,781,954.84 is: 30,058,254.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,117,088.92 : 55,360,030.62 = 21,781,954.84 : x
  2. Step 2: Convert to fraction form
    40,117,088.92/55,360,030.62 = 21,781,954.84/x
  3. Step 3: Cross multiply
    40,117,088.92x = 55,360,030.62 × 21,781,954.84
  4. Step 4: Simplify right side
    40,117,088.92x = 1,205,849,686,905,857.25
  5. Step 5: Solve for x
    x = 1,205,849,686,905,857.25/40,117,088.92
  6. Step 6: Final answer
    x = 30,058,254.96

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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.