Home / 688,382,921.36-949,963,171.96-375,116,166.64

Finding the Fourth Proportional to 688,382,921.36, 949,963,171.96 and 375,116,166.64

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Solution

The fourth proportional to 688,382,921.36, 949,963,171.96 and 375,116,166.64 is: 517,657,443.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,382,921.36 : 949,963,171.96 = 375,116,166.64 : x
  2. Step 2: Convert to fraction form
    688,382,921.36/949,963,171.96 = 375,116,166.64/x
  3. Step 3: Cross multiply
    688,382,921.36x = 949,963,171.96 × 375,116,166.64
  4. Step 4: Simplify right side
    688,382,921.36x = 356,346,543,514,810,368
  5. Step 5: Solve for x
    x = 356,346,543,514,810,368/688,382,921.36
  6. Step 6: Final answer
    x = 517,657,443.93

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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.