Home / 138,140,088.77-207,107,980.81-83,540,535.86

Finding the Fourth Proportional to 138,140,088.77, 207,107,980.81 and 83,540,535.86

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Solution

The fourth proportional to 138,140,088.77, 207,107,980.81 and 83,540,535.86 is: 125,249,026.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,140,088.77 : 207,107,980.81 = 83,540,535.86 : x
  2. Step 2: Convert to fraction form
    138,140,088.77/207,107,980.81 = 83,540,535.86/x
  3. Step 3: Cross multiply
    138,140,088.77x = 207,107,980.81 × 83,540,535.86
  4. Step 4: Simplify right side
    138,140,088.77x = 17,301,911,697,749,996
  5. Step 5: Solve for x
    x = 17,301,911,697,749,996/138,140,088.77
  6. Step 6: Final answer
    x = 125,249,026.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.