Home / 1,513,362,143.40-2,270,043,215.10-1,272,300,505.80

Finding the Fourth Proportional to 1,513,362,143.40, 2,270,043,215.10 and 1,272,300,505.80

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Solution

The fourth proportional to 1,513,362,143.40, 2,270,043,215.10 and 1,272,300,505.80 is: 1,908,450,758.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513,362,143.40 : 2,270,043,215.10 = 1,272,300,505.80 : x
  2. Step 2: Convert to fraction form
    1,513,362,143.40/2,270,043,215.10 = 1,272,300,505.80/x
  3. Step 3: Cross multiply
    1,513,362,143.40x = 2,270,043,215.10 × 1,272,300,505.80
  4. Step 4: Simplify right side
    1,513,362,143.40x = 2,888,177,130,759,587,840
  5. Step 5: Solve for x
    x = 2,888,177,130,759,587,840/1,513,362,143.40
  6. Step 6: Final answer
    x = 1,908,450,758.70

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Double scale
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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.