Home / 130,380,000.40-195,570,000.60-128,466,812.80

Finding the Fourth Proportional to 130,380,000.40, 195,570,000.60 and 128,466,812.80

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Solution

The fourth proportional to 130,380,000.40, 195,570,000.60 and 128,466,812.80 is: 192,700,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,380,000.40 : 195,570,000.60 = 128,466,812.80 : x
  2. Step 2: Convert to fraction form
    130,380,000.40/195,570,000.60 = 128,466,812.80/x
  3. Step 3: Cross multiply
    130,380,000.40x = 195,570,000.60 × 128,466,812.80
  4. Step 4: Simplify right side
    130,380,000.40x = 25,124,254,656,376,088
  5. Step 5: Solve for x
    x = 25,124,254,656,376,088/130,380,000.40
  6. Step 6: Final answer
    x = 192,700,219.20

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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.