Home / 343,478,561.64-515,435,758.86-146,743,457.07

Finding the Fourth Proportional to 343,478,561.64, 515,435,758.86 and 146,743,457.07

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Solution

The fourth proportional to 343,478,561.64, 515,435,758.86 and 146,743,457.07 is: 220,208,285.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,478,561.64 : 515,435,758.86 = 146,743,457.07 : x
  2. Step 2: Convert to fraction form
    343,478,561.64/515,435,758.86 = 146,743,457.07/x
  3. Step 3: Cross multiply
    343,478,561.64x = 515,435,758.86 × 146,743,457.07
  4. Step 4: Simplify right side
    343,478,561.64x = 75,636,825,155,098,448
  5. Step 5: Solve for x
    x = 75,636,825,155,098,448/343,478,561.64
  6. Step 6: Final answer
    x = 220,208,285.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.