Home / 85,964,136.80-128,946,205.20-58,754,357.60

Finding the Fourth Proportional to 85,964,136.80, 128,946,205.20 and 58,754,357.60

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Solution

The fourth proportional to 85,964,136.80, 128,946,205.20 and 58,754,357.60 is: 88,131,536.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,964,136.80 : 128,946,205.20 = 58,754,357.60 : x
  2. Step 2: Convert to fraction form
    85,964,136.80/128,946,205.20 = 58,754,357.60/x
  3. Step 3: Cross multiply
    85,964,136.80x = 128,946,205.20 × 58,754,357.60
  4. Step 4: Simplify right side
    85,964,136.80x = 7,576,151,451,483,780
  5. Step 5: Solve for x
    x = 7,576,151,451,483,780/85,964,136.80
  6. Step 6: Final answer
    x = 88,131,536.40

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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.