Home / 487,780,496.16-731,814,474.72-196,497,728.16

Finding the Fourth Proportional to 487,780,496.16, 731,814,474.72 and 196,497,728.16

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Solution

The fourth proportional to 487,780,496.16, 731,814,474.72 and 196,497,728.16 is: 294,804,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,780,496.16 : 731,814,474.72 = 196,497,728.16 : x
  2. Step 2: Convert to fraction form
    487,780,496.16/731,814,474.72 = 196,497,728.16/x
  3. Step 3: Cross multiply
    487,780,496.16x = 731,814,474.72 × 196,497,728.16
  4. Step 4: Simplify right side
    487,780,496.16x = 143,799,881,717,083,760
  5. Step 5: Solve for x
    x = 143,799,881,717,083,760/487,780,496.16
  6. Step 6: Final answer
    x = 294,804,492.70

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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.