Home / 1,120,161,384.30-1,545,847,455.54-618,368,979.42

Finding the Fourth Proportional to 1,120,161,384.30, 1,545,847,455.54 and 618,368,979.42

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Solution

The fourth proportional to 1,120,161,384.30, 1,545,847,455.54 and 618,368,979.42 is: 853,362,851.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,161,384.30 : 1,545,847,455.54 = 618,368,979.42 : x
  2. Step 2: Convert to fraction form
    1,120,161,384.30/1,545,847,455.54 = 618,368,979.42/x
  3. Step 3: Cross multiply
    1,120,161,384.30x = 1,545,847,455.54 × 618,368,979.42
  4. Step 4: Simplify right side
    1,120,161,384.30x = 955,904,113,421,273,472
  5. Step 5: Solve for x
    x = 955,904,113,421,273,472/1,120,161,384.30
  6. Step 6: Final answer
    x = 853,362,851.83

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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.