Home / 1,180,760,127.60-1,771,896,018.60-689,472,447.60

Finding the Fourth Proportional to 1,180,760,127.60, 1,771,896,018.60 and 689,472,447.60

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Solution

The fourth proportional to 1,180,760,127.60, 1,771,896,018.60 and 689,472,447.60 is: 1,034,650,015.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,760,127.60 : 1,771,896,018.60 = 689,472,447.60 : x
  2. Step 2: Convert to fraction form
    1,180,760,127.60/1,771,896,018.60 = 689,472,447.60/x
  3. Step 3: Cross multiply
    1,180,760,127.60x = 1,771,896,018.60 × 689,472,447.60
  4. Step 4: Simplify right side
    1,180,760,127.60x = 1,221,673,484,836,837,120
  5. Step 5: Solve for x
    x = 1,221,673,484,836,837,120/1,180,760,127.60
  6. Step 6: Final answer
    x = 1,034,650,015.94

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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.