Home / 478,797,585.63-660,740,369.73-258,781,011.63

Finding the Fourth Proportional to 478,797,585.63, 660,740,369.73 and 258,781,011.63

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Solution

The fourth proportional to 478,797,585.63, 660,740,369.73 and 258,781,011.63 is: 357,117,634.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,797,585.63 : 660,740,369.73 = 258,781,011.63 : x
  2. Step 2: Convert to fraction form
    478,797,585.63/660,740,369.73 = 258,781,011.63/x
  3. Step 3: Cross multiply
    478,797,585.63x = 660,740,369.73 × 258,781,011.63
  4. Step 4: Simplify right side
    478,797,585.63x = 170,987,061,303,509,632
  5. Step 5: Solve for x
    x = 170,987,061,303,509,632/478,797,585.63
  6. Step 6: Final answer
    x = 357,117,634.75

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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.