Home / 715,392,936.40-1,073,089,404.60-663,736,871.20

Finding the Fourth Proportional to 715,392,936.40, 1,073,089,404.60 and 663,736,871.20

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Solution

The fourth proportional to 715,392,936.40, 1,073,089,404.60 and 663,736,871.20 is: 995,605,306.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,392,936.40 : 1,073,089,404.60 = 663,736,871.20 : x
  2. Step 2: Convert to fraction form
    715,392,936.40/1,073,089,404.60 = 663,736,871.20/x
  3. Step 3: Cross multiply
    715,392,936.40x = 1,073,089,404.60 × 663,736,871.20
  4. Step 4: Simplify right side
    715,392,936.40x = 712,249,003,927,074,944
  5. Step 5: Solve for x
    x = 712,249,003,927,074,944/715,392,936.40
  6. Step 6: Final answer
    x = 995,605,306.80

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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.