Home / 1,397,913,885.02-1,929,162,159.88-762,875,379.48

Finding the Fourth Proportional to 1,397,913,885.02, 1,929,162,159.88 and 762,875,379.48

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Solution

The fourth proportional to 1,397,913,885.02, 1,929,162,159.88 and 762,875,379.48 is: 1,052,790,397.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,913,885.02 : 1,929,162,159.88 = 762,875,379.48 : x
  2. Step 2: Convert to fraction form
    1,397,913,885.02/1,929,162,159.88 = 762,875,379.48/x
  3. Step 3: Cross multiply
    1,397,913,885.02x = 1,929,162,159.88 × 762,875,379.48
  4. Step 4: Simplify right side
    1,397,913,885.02x = 1,471,710,314,796,911,616
  5. Step 5: Solve for x
    x = 1,471,710,314,796,911,616/1,397,913,885.02
  6. Step 6: Final answer
    x = 1,052,790,397.58

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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.