Home / 864,047,036.39-1,192,388,051.21-467,569,984.77

Finding the Fourth Proportional to 864,047,036.39, 1,192,388,051.21 and 467,569,984.77

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Solution

The fourth proportional to 864,047,036.39, 1,192,388,051.21 and 467,569,984.77 is: 645,248,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,047,036.39 : 1,192,388,051.21 = 467,569,984.77 : x
  2. Step 2: Convert to fraction form
    864,047,036.39/1,192,388,051.21 = 467,569,984.77/x
  3. Step 3: Cross multiply
    864,047,036.39x = 1,192,388,051.21 × 467,569,984.77
  4. Step 4: Simplify right side
    864,047,036.39x = 557,524,862,941,851,776
  5. Step 5: Solve for x
    x = 557,524,862,941,851,776/864,047,036.39
  6. Step 6: Final answer
    x = 645,248,278.70

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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.