Home / 1,429,918,460.16-1,973,311,072.49-786,201,592.38

Finding the Fourth Proportional to 1,429,918,460.16, 1,973,311,072.49 and 786,201,592.38

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Solution

The fourth proportional to 1,429,918,460.16, 1,973,311,072.49 and 786,201,592.38 is: 1,084,971,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,918,460.16 : 1,973,311,072.49 = 786,201,592.38 : x
  2. Step 2: Convert to fraction form
    1,429,918,460.16/1,973,311,072.49 = 786,201,592.38/x
  3. Step 3: Cross multiply
    1,429,918,460.16x = 1,973,311,072.49 × 786,201,592.38
  4. Step 4: Simplify right side
    1,429,918,460.16x = 1,551,420,307,448,792,576
  5. Step 5: Solve for x
    x = 1,551,420,307,448,792,576/1,429,918,460.16
  6. Step 6: Final answer
    x = 1,084,971,171.91

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.