Home / 152,119,455.30-209,929,600.53-86,038,660.62

Finding the Fourth Proportional to 152,119,455.30, 209,929,600.53 and 86,038,660.62

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Solution

The fourth proportional to 152,119,455.30, 209,929,600.53 and 86,038,660.62 is: 118,736,039.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,119,455.30 : 209,929,600.53 = 86,038,660.62 : x
  2. Step 2: Convert to fraction form
    152,119,455.30/209,929,600.53 = 86,038,660.62/x
  3. Step 3: Cross multiply
    152,119,455.30x = 209,929,600.53 × 86,038,660.62
  4. Step 4: Simplify right side
    152,119,455.30x = 18,062,061,654,092,844
  5. Step 5: Solve for x
    x = 18,062,061,654,092,844/152,119,455.30
  6. Step 6: Final answer
    x = 118,736,039.51

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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.