Home / 160,686,096.60-221,749,242.99-90,137,345.43

Finding the Fourth Proportional to 160,686,096.60, 221,749,242.99 and 90,137,345.43

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Solution

The fourth proportional to 160,686,096.60, 221,749,242.99 and 90,137,345.43 is: 124,390,899.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,686,096.60 : 221,749,242.99 = 90,137,345.43 : x
  2. Step 2: Convert to fraction form
    160,686,096.60/221,749,242.99 = 90,137,345.43/x
  3. Step 3: Cross multiply
    160,686,096.60x = 221,749,242.99 × 90,137,345.43
  4. Step 4: Simplify right side
    160,686,096.60x = 19,987,888,114,230,640
  5. Step 5: Solve for x
    x = 19,987,888,114,230,640/160,686,096.60
  6. Step 6: Final answer
    x = 124,390,899.63

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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.