Home / 287,713,006.10-431,569,509.15-105,922,567.70

Finding the Fourth Proportional to 287,713,006.10, 431,569,509.15 and 105,922,567.70

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Solution

The fourth proportional to 287,713,006.10, 431,569,509.15 and 105,922,567.70 is: 158,883,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,713,006.10 : 431,569,509.15 = 105,922,567.70 : x
  2. Step 2: Convert to fraction form
    287,713,006.10/431,569,509.15 = 105,922,567.70/x
  3. Step 3: Cross multiply
    287,713,006.10x = 431,569,509.15 × 105,922,567.70
  4. Step 4: Simplify right side
    287,713,006.10x = 45,712,950,550,196,640
  5. Step 5: Solve for x
    x = 45,712,950,550,196,640/287,713,006.10
  6. Step 6: Final answer
    x = 158,883,851.55

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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.