Home / 877,039,117.29-1,315,120,938.12-286,752,466.98

Finding the Fourth Proportional to 877,039,117.29, 1,315,120,938.12 and 286,752,466.98

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Solution

The fourth proportional to 877,039,117.29, 1,315,120,938.12 and 286,752,466.98 is: 429,985,579.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,039,117.29 : 1,315,120,938.12 = 286,752,466.98 : x
  2. Step 2: Convert to fraction form
    877,039,117.29/1,315,120,938.12 = 286,752,466.98/x
  3. Step 3: Cross multiply
    877,039,117.29x = 1,315,120,938.12 × 286,752,466.98
  4. Step 4: Simplify right side
    877,039,117.29x = 377,114,173,382,961,920
  5. Step 5: Solve for x
    x = 377,114,173,382,961,920/877,039,117.29
  6. Step 6: Final answer
    x = 429,985,579.83

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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.