Home / 159,898,838.20-220,661,100.93-86,559,980.20

Finding the Fourth Proportional to 159,898,838.20, 220,661,100.93 and 86,559,980.20

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Solution

The fourth proportional to 159,898,838.20, 220,661,100.93 and 86,559,980.20 is: 119,453,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,898,838.20 : 220,661,100.93 = 86,559,980.20 : x
  2. Step 2: Convert to fraction form
    159,898,838.20/220,661,100.93 = 86,559,980.20/x
  3. Step 3: Cross multiply
    159,898,838.20x = 220,661,100.93 × 86,559,980.20
  4. Step 4: Simplify right side
    159,898,838.20x = 19,100,420,527,411,004
  5. Step 5: Solve for x
    x = 19,100,420,527,411,004/159,898,838.20
  6. Step 6: Final answer
    x = 119,453,153.90

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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.