Home / 1,404,103,631.70-2,106,155,447.55-678,509,519.70

Finding the Fourth Proportional to 1,404,103,631.70, 2,106,155,447.55 and 678,509,519.70

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Solution

The fourth proportional to 1,404,103,631.70, 2,106,155,447.55 and 678,509,519.70 is: 1,017,764,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,103,631.70 : 2,106,155,447.55 = 678,509,519.70 : x
  2. Step 2: Convert to fraction form
    1,404,103,631.70/2,106,155,447.55 = 678,509,519.70/x
  3. Step 3: Cross multiply
    1,404,103,631.70x = 2,106,155,447.55 × 678,509,519.70
  4. Step 4: Simplify right side
    1,404,103,631.70x = 1,429,046,521,130,689,024
  5. Step 5: Solve for x
    x = 1,429,046,521,130,689,024/1,404,103,631.70
  6. Step 6: Final answer
    x = 1,017,764,279.55

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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.