Home / 670,246,931.90-1,005,370,397.85-621,873,991.10

Finding the Fourth Proportional to 670,246,931.90, 1,005,370,397.85 and 621,873,991.10

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Solution

The fourth proportional to 670,246,931.90, 1,005,370,397.85 and 621,873,991.10 is: 932,810,986.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,246,931.90 : 1,005,370,397.85 = 621,873,991.10 : x
  2. Step 2: Convert to fraction form
    670,246,931.90/1,005,370,397.85 = 621,873,991.10/x
  3. Step 3: Cross multiply
    670,246,931.90x = 1,005,370,397.85 × 621,873,991.10
  4. Step 4: Simplify right side
    670,246,931.90x = 625,213,701,844,774,400
  5. Step 5: Solve for x
    x = 625,213,701,844,774,400/670,246,931.90
  6. Step 6: Final answer
    x = 932,810,986.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.