Home / 1,981,448,396.55-2,732,152,265.55-1,266,038,785.53

Finding the Fourth Proportional to 1,981,448,396.55, 2,732,152,265.55 and 1,266,038,785.53

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Solution

The fourth proportional to 1,981,448,396.55, 2,732,152,265.55 and 1,266,038,785.53 is: 1,745,698,117.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,448,396.55 : 2,732,152,265.55 = 1,266,038,785.53 : x
  2. Step 2: Convert to fraction form
    1,981,448,396.55/2,732,152,265.55 = 1,266,038,785.53/x
  3. Step 3: Cross multiply
    1,981,448,396.55x = 2,732,152,265.55 × 1,266,038,785.53
  4. Step 4: Simplify right side
    1,981,448,396.55x = 3,459,010,736,159,960,064
  5. Step 5: Solve for x
    x = 3,459,010,736,159,960,064/1,981,448,396.55
  6. Step 6: Final answer
    x = 1,745,698,117.69

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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.