Home / 739,798,398.91-1,020,913,654.29-400,698,438.13

Finding the Fourth Proportional to 739,798,398.91, 1,020,913,654.29 and 400,698,438.13

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Solution

The fourth proportional to 739,798,398.91, 1,020,913,654.29 and 400,698,438.13 is: 552,959,437.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,798,398.91 : 1,020,913,654.29 = 400,698,438.13 : x
  2. Step 2: Convert to fraction form
    739,798,398.91/1,020,913,654.29 = 400,698,438.13/x
  3. Step 3: Cross multiply
    739,798,398.91x = 1,020,913,654.29 × 400,698,438.13
  4. Step 4: Simplify right side
    739,798,398.91x = 409,078,506,739,593,728
  5. Step 5: Solve for x
    x = 409,078,506,739,593,728/739,798,398.91
  6. Step 6: Final answer
    x = 552,959,437.79

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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.