Home / 1,310,257,400.10-1,965,386,100.15-1,210,488,209.70

Finding the Fourth Proportional to 1,310,257,400.10, 1,965,386,100.15 and 1,210,488,209.70

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Solution

The fourth proportional to 1,310,257,400.10, 1,965,386,100.15 and 1,210,488,209.70 is: 1,815,732,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,257,400.10 : 1,965,386,100.15 = 1,210,488,209.70 : x
  2. Step 2: Convert to fraction form
    1,310,257,400.10/1,965,386,100.15 = 1,210,488,209.70/x
  3. Step 3: Cross multiply
    1,310,257,400.10x = 1,965,386,100.15 × 1,210,488,209.70
  4. Step 4: Simplify right side
    1,310,257,400.10x = 2,379,076,701,739,838,464
  5. Step 5: Solve for x
    x = 2,379,076,701,739,838,464/1,310,257,400.10
  6. Step 6: Final answer
    x = 1,815,732,314.55

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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.