Home / 1,279,450,763.60-1,919,176,165.56-310,102,379.60

Finding the Fourth Proportional to 1,279,450,763.60, 1,919,176,165.56 and 310,102,379.60

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Solution

The fourth proportional to 1,279,450,763.60, 1,919,176,165.56 and 310,102,379.60 is: 465,153,574.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,450,763.60 : 1,919,176,165.56 = 310,102,379.60 : x
  2. Step 2: Convert to fraction form
    1,279,450,763.60/1,919,176,165.56 = 310,102,379.60/x
  3. Step 3: Cross multiply
    1,279,450,763.60x = 1,919,176,165.56 × 310,102,379.60
  4. Step 4: Simplify right side
    1,279,450,763.60x = 595,141,095,811,759,616
  5. Step 5: Solve for x
    x = 595,141,095,811,759,616/1,279,450,763.60
  6. Step 6: Final answer
    x = 465,153,574.29

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1.5x scale

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.