Home / 772,416,002.40-1,158,624,003.60-765,249,640.80

Finding the Fourth Proportional to 772,416,002.40, 1,158,624,003.60 and 765,249,640.80

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Solution

The fourth proportional to 772,416,002.40, 1,158,624,003.60 and 765,249,640.80 is: 1,147,874,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,416,002.40 : 1,158,624,003.60 = 765,249,640.80 : x
  2. Step 2: Convert to fraction form
    772,416,002.40/1,158,624,003.60 = 765,249,640.80/x
  3. Step 3: Cross multiply
    772,416,002.40x = 1,158,624,003.60 × 765,249,640.80
  4. Step 4: Simplify right side
    772,416,002.40x = 886,636,602,577,157,760
  5. Step 5: Solve for x
    x = 886,636,602,577,157,760/772,416,002.40
  6. Step 6: Final answer
    x = 1,147,874,461.20

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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.