Home / 40,196,848.32-55,471,496.40-21,862,440

Finding the Fourth Proportional to 40,196,848.32, 55,471,496.40 and 21,862,440

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Solution

The fourth proportional to 40,196,848.32, 55,471,496.40 and 21,862,440 is: 30,170,083.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,196,848.32 : 55,471,496.40 = 21,862,440 : x
  2. Step 2: Convert to fraction form
    40,196,848.32/55,471,496.40 = 21,862,440/x
  3. Step 3: Cross multiply
    40,196,848.32x = 55,471,496.40 × 21,862,440
  4. Step 4: Simplify right side
    40,196,848.32x = 1,212,742,261,755,216
  5. Step 5: Solve for x
    x = 1,212,742,261,755,216/40,196,848.32
  6. Step 6: Final answer
    x = 30,170,083.29

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1.5x scale

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.