Home / 157,042,455.80-216,714,365.10-87,427,835.24

Finding the Fourth Proportional to 157,042,455.80, 216,714,365.10 and 87,427,835.24

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Solution

The fourth proportional to 157,042,455.80, 216,714,365.10 and 87,427,835.24 is: 120,648,061.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,042,455.80 : 216,714,365.10 = 87,427,835.24 : x
  2. Step 2: Convert to fraction form
    157,042,455.80/216,714,365.10 = 87,427,835.24/x
  3. Step 3: Cross multiply
    157,042,455.80x = 216,714,365.10 × 87,427,835.24
  4. Step 4: Simplify right side
    157,042,455.80x = 18,946,867,806,104,004
  5. Step 5: Solve for x
    x = 18,946,867,806,104,004/157,042,455.80
  6. Step 6: Final answer
    x = 120,648,061.12

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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.