Home / 157,208,242.08-216,948,215.32-90,221,858.59

Finding the Fourth Proportional to 157,208,242.08, 216,948,215.32 and 90,221,858.59

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Solution

The fourth proportional to 157,208,242.08, 216,948,215.32 and 90,221,858.59 is: 124,506,647.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,208,242.08 : 216,948,215.32 = 90,221,858.59 : x
  2. Step 2: Convert to fraction form
    157,208,242.08/216,948,215.32 = 90,221,858.59/x
  3. Step 3: Cross multiply
    157,208,242.08x = 216,948,215.32 × 90,221,858.59
  4. Step 4: Simplify right side
    157,208,242.08x = 19,573,471,203,008,876
  5. Step 5: Solve for x
    x = 19,573,471,203,008,876/157,208,242.08
  6. Step 6: Final answer
    x = 124,506,647.64

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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.