Home / 400,875,122-553,198,259.40-235,873,378.64

Finding the Fourth Proportional to 400,875,122, 553,198,259.40 and 235,873,378.64

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Solution

The fourth proportional to 400,875,122, 553,198,259.40 and 235,873,378.64 is: 325,499,726.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,875,122 : 553,198,259.40 = 235,873,378.64 : x
  2. Step 2: Convert to fraction form
    400,875,122/553,198,259.40 = 235,873,378.64/x
  3. Step 3: Cross multiply
    400,875,122x = 553,198,259.40 × 235,873,378.64
  4. Step 4: Simplify right side
    400,875,122x = 130,484,742,502,445,120
  5. Step 5: Solve for x
    x = 130,484,742,502,445,120/400,875,122
  6. Step 6: Final answer
    x = 325,499,726.33

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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.