Home / 517,830,750.36-776,752,856.64-172,784,377.26

Finding the Fourth Proportional to 517,830,750.36, 776,752,856.64 and 172,784,377.26

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Solution

The fourth proportional to 517,830,750.36, 776,752,856.64 and 172,784,377.26 is: 259,178,811.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,830,750.36 : 776,752,856.64 = 172,784,377.26 : x
  2. Step 2: Convert to fraction form
    517,830,750.36/776,752,856.64 = 172,784,377.26/x
  3. Step 3: Cross multiply
    517,830,750.36x = 776,752,856.64 × 172,784,377.26
  4. Step 4: Simplify right side
    517,830,750.36x = 134,210,758,619,468,448
  5. Step 5: Solve for x
    x = 134,210,758,619,468,448/517,830,750.36
  6. Step 6: Final answer
    x = 259,178,811.85

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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.