Home / 768,733,768.56-1,154,940,221.90-492,925,353.81

Finding the Fourth Proportional to 768,733,768.56, 1,154,940,221.90 and 492,925,353.81

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Solution

The fourth proportional to 768,733,768.56, 1,154,940,221.90 and 492,925,353.81 is: 740,567,594.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,733,768.56 : 1,154,940,221.90 = 492,925,353.81 : x
  2. Step 2: Convert to fraction form
    768,733,768.56/1,154,940,221.90 = 492,925,353.81/x
  3. Step 3: Cross multiply
    768,733,768.56x = 1,154,940,221.90 × 492,925,353.81
  4. Step 4: Simplify right side
    768,733,768.56x = 569,299,317,506,992,768
  5. Step 5: Solve for x
    x = 569,299,317,506,992,768/768,733,768.56
  6. Step 6: Final answer
    x = 740,567,594.13

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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.