Home / 100,243,498.50-138,077,271.81-70,823,760.66

Finding the Fourth Proportional to 100,243,498.50, 138,077,271.81 and 70,823,760.66

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Solution

The fourth proportional to 100,243,498.50, 138,077,271.81 and 70,823,760.66 is: 97,553,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,243,498.50 : 138,077,271.81 = 70,823,760.66 : x
  2. Step 2: Convert to fraction form
    100,243,498.50/138,077,271.81 = 70,823,760.66/x
  3. Step 3: Cross multiply
    100,243,498.50x = 138,077,271.81 × 70,823,760.66
  4. Step 4: Simplify right side
    100,243,498.50x = 9,779,151,651,257,204
  5. Step 5: Solve for x
    x = 9,779,151,651,257,204/100,243,498.50
  6. Step 6: Final answer
    x = 97,553,974.05

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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.