Home / 157,031,730.78-216,705,392.16-86,473,902.31

Finding the Fourth Proportional to 157,031,730.78, 216,705,392.16 and 86,473,902.31

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Solution

The fourth proportional to 157,031,730.78, 216,705,392.16 and 86,473,902.31 is: 119,334,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,031,730.78 : 216,705,392.16 = 86,473,902.31 : x
  2. Step 2: Convert to fraction form
    157,031,730.78/216,705,392.16 = 86,473,902.31/x
  3. Step 3: Cross multiply
    157,031,730.78x = 216,705,392.16 × 86,473,902.31
  4. Step 4: Simplify right side
    157,031,730.78x = 18,739,360,911,694,080
  5. Step 5: Solve for x
    x = 18,739,360,911,694,080/157,031,730.78
  6. Step 6: Final answer
    x = 119,334,868.30

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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.