Home / 157,031,729.78-216,705,390.78-86,473,901.31

Finding the Fourth Proportional to 157,031,729.78, 216,705,390.78 and 86,473,901.31

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Solution

The fourth proportional to 157,031,729.78, 216,705,390.78 and 86,473,901.31 is: 119,334,866.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,031,729.78 : 216,705,390.78 = 86,473,901.31 : x
  2. Step 2: Convert to fraction form
    157,031,729.78/216,705,390.78 = 86,473,901.31/x
  3. Step 3: Cross multiply
    157,031,729.78x = 216,705,390.78 × 86,473,901.31
  4. Step 4: Simplify right side
    157,031,729.78x = 18,739,360,575,898,456
  5. Step 5: Solve for x
    x = 18,739,360,575,898,456/157,031,729.78
  6. Step 6: Final answer
    x = 119,334,866.92

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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.