Home / 320,607,631.32-442,480,258.89-179,532,574.35

Finding the Fourth Proportional to 320,607,631.32, 442,480,258.89 and 179,532,574.35

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Solution

The fourth proportional to 320,607,631.32, 442,480,258.89 and 179,532,574.35 is: 247,778,319.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,607,631.32 : 442,480,258.89 = 179,532,574.35 : x
  2. Step 2: Convert to fraction form
    320,607,631.32/442,480,258.89 = 179,532,574.35/x
  3. Step 3: Cross multiply
    320,607,631.32x = 442,480,258.89 × 179,532,574.35
  4. Step 4: Simplify right side
    320,607,631.32x = 79,439,619,977,576,176
  5. Step 5: Solve for x
    x = 79,439,619,977,576,176/320,607,631.32
  6. Step 6: Final answer
    x = 247,778,319.10

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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.