Home / 707,605,557.12-976,452,712.32-390,051,886.08

Finding the Fourth Proportional to 707,605,557.12, 976,452,712.32 and 390,051,886.08

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Solution

The fourth proportional to 707,605,557.12, 976,452,712.32 and 390,051,886.08 is: 538,247,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,605,557.12 : 976,452,712.32 = 390,051,886.08 : x
  2. Step 2: Convert to fraction form
    707,605,557.12/976,452,712.32 = 390,051,886.08/x
  3. Step 3: Cross multiply
    707,605,557.12x = 976,452,712.32 × 390,051,886.08
  4. Step 4: Simplify right side
    707,605,557.12x = 380,867,222,108,347,648
  5. Step 5: Solve for x
    x = 380,867,222,108,347,648/707,605,557.12
  6. Step 6: Final answer
    x = 538,247,923.97

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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.