Home / 1,429,461,126.92-1,972,890,296.36-1,190,928,064.38

Finding the Fourth Proportional to 1,429,461,126.92, 1,972,890,296.36 and 1,190,928,064.38

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Solution

The fourth proportional to 1,429,461,126.92, 1,972,890,296.36 and 1,190,928,064.38 is: 1,643,675,632.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,461,126.92 : 1,972,890,296.36 = 1,190,928,064.38 : x
  2. Step 2: Convert to fraction form
    1,429,461,126.92/1,972,890,296.36 = 1,190,928,064.38/x
  3. Step 3: Cross multiply
    1,429,461,126.92x = 1,972,890,296.36 × 1,190,928,064.38
  4. Step 4: Simplify right side
    1,429,461,126.92x = 2,349,570,421,872,144,896
  5. Step 5: Solve for x
    x = 2,349,570,421,872,144,896/1,429,461,126.92
  6. Step 6: Final answer
    x = 1,643,675,632.47

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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.