Home / 1,005,667,262.90-1,387,941,640.73-609,178,618.98

Finding the Fourth Proportional to 1,005,667,262.90, 1,387,941,640.73 and 609,178,618.98

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Solution

The fourth proportional to 1,005,667,262.90, 1,387,941,640.73 and 609,178,618.98 is: 840,739,679.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,667,262.90 : 1,387,941,640.73 = 609,178,618.98 : x
  2. Step 2: Convert to fraction form
    1,005,667,262.90/1,387,941,640.73 = 609,178,618.98/x
  3. Step 3: Cross multiply
    1,005,667,262.90x = 1,387,941,640.73 × 609,178,618.98
  4. Step 4: Simplify right side
    1,005,667,262.90x = 845,504,371,924,736,768
  5. Step 5: Solve for x
    x = 845,504,371,924,736,768/1,005,667,262.90
  6. Step 6: Final answer
    x = 840,739,679.13

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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.