Home / 478,642,736.16-660,527,003.49-258,626,162.16

Finding the Fourth Proportional to 478,642,736.16, 660,527,003.49 and 258,626,162.16

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Solution

The fourth proportional to 478,642,736.16, 660,527,003.49 and 258,626,162.16 is: 356,904,118.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,642,736.16 : 660,527,003.49 = 258,626,162.16 : x
  2. Step 2: Convert to fraction form
    478,642,736.16/660,527,003.49 = 258,626,162.16/x
  3. Step 3: Cross multiply
    478,642,736.16x = 660,527,003.49 × 258,626,162.16
  4. Step 4: Simplify right side
    478,642,736.16x = 170,829,563,913,555,264
  5. Step 5: Solve for x
    x = 170,829,563,913,555,264/478,642,736.16
  6. Step 6: Final answer
    x = 356,904,118.69

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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.