Home / 2,178,921,420.72-3,003,398,948.16-1,473,816,261.96

Finding the Fourth Proportional to 2,178,921,420.72, 3,003,398,948.16 and 1,473,816,261.96

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Solution

The fourth proportional to 2,178,921,420.72, 3,003,398,948.16 and 1,473,816,261.96 is: 2,031,490,520.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,921,420.72 : 3,003,398,948.16 = 1,473,816,261.96 : x
  2. Step 2: Convert to fraction form
    2,178,921,420.72/3,003,398,948.16 = 1,473,816,261.96/x
  3. Step 3: Cross multiply
    2,178,921,420.72x = 3,003,398,948.16 × 1,473,816,261.96
  4. Step 4: Simplify right side
    2,178,921,420.72x = 4,426,458,210,951,767,040
  5. Step 5: Solve for x
    x = 4,426,458,210,951,767,040/2,178,921,420.72
  6. Step 6: Final answer
    x = 2,031,490,520.43

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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.