Home / 18,126,013,977.16-25,012,772,226.73-9,987,361,941.69

Finding the Fourth Proportional to 18,126,013,977.16, 25,012,772,226.73 and 9,987,361,941.69

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Solution

The fourth proportional to 18,126,013,977.16, 25,012,772,226.73 and 9,987,361,941.69 is: 13,781,938,472.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126,013,977.16 : 25,012,772,226.73 = 9,987,361,941.69 : x
  2. Step 2: Convert to fraction form
    18,126,013,977.16/25,012,772,226.73 = 9,987,361,941.69/x
  3. Step 3: Cross multiply
    18,126,013,977.16x = 25,012,772,226.73 × 9,987,361,941.69
  4. Step 4: Simplify right side
    18,126,013,977.16x = 249,811,609,393,356,242,944
  5. Step 5: Solve for x
    x = 249,811,609,393,356,242,944/18,126,013,977.16
  6. Step 6: Final answer
    x = 13,781,938,472.97

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Double scale
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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.