Home / 157,398,237.96-217,209,953.88-87,788,127.48

Finding the Fourth Proportional to 157,398,237.96, 217,209,953.88 and 87,788,127.48

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Solution

The fourth proportional to 157,398,237.96, 217,209,953.88 and 87,788,127.48 is: 121,147,830.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,398,237.96 : 217,209,953.88 = 87,788,127.48 : x
  2. Step 2: Convert to fraction form
    157,398,237.96/217,209,953.88 = 87,788,127.48/x
  3. Step 3: Cross multiply
    157,398,237.96x = 217,209,953.88 × 87,788,127.48
  4. Step 4: Simplify right side
    157,398,237.96x = 19,068,455,121,142,360
  5. Step 5: Solve for x
    x = 19,068,455,121,142,360/157,398,237.96
  6. Step 6: Final answer
    x = 121,147,830.93

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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.