Home / 424,980,833.16-636,987,688.65-258,617,416.76

Finding the Fourth Proportional to 424,980,833.16, 636,987,688.65 and 258,617,416.76

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Solution

The fourth proportional to 424,980,833.16, 636,987,688.65 and 258,617,416.76 is: 387,631,859.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,980,833.16 : 636,987,688.65 = 258,617,416.76 : x
  2. Step 2: Convert to fraction form
    424,980,833.16/636,987,688.65 = 258,617,416.76/x
  3. Step 3: Cross multiply
    424,980,833.16x = 636,987,688.65 × 258,617,416.76
  4. Step 4: Simplify right side
    424,980,833.16x = 164,736,110,543,401,216
  5. Step 5: Solve for x
    x = 164,736,110,543,401,216/424,980,833.16
  6. Step 6: Final answer
    x = 387,631,859.34

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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.