Home / 6,990,021,762.38-9,646,229,663.12-3,774,931,442.78

Finding the Fourth Proportional to 6,990,021,762.38, 9,646,229,663.12 and 3,774,931,442.78

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Solution

The fourth proportional to 6,990,021,762.38, 9,646,229,663.12 and 3,774,931,442.78 is: 5,209,405,191.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,990,021,762.38 : 9,646,229,663.12 = 3,774,931,442.78 : x
  2. Step 2: Convert to fraction form
    6,990,021,762.38/9,646,229,663.12 = 3,774,931,442.78/x
  3. Step 3: Cross multiply
    6,990,021,762.38x = 9,646,229,663.12 × 3,774,931,442.78
  4. Step 4: Simplify right side
    6,990,021,762.38x = 36,413,855,659,521,708,032
  5. Step 5: Solve for x
    x = 36,413,855,659,521,708,032/6,990,021,762.38
  6. Step 6: Final answer
    x = 5,209,405,191.77

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Double scale
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1.5x scale

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.