Home / 12,768,085.60-19,152,128.40-5,200,482.40

Finding the Fourth Proportional to 12,768,085.60, 19,152,128.40 and 5,200,482.40

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Solution

The fourth proportional to 12,768,085.60, 19,152,128.40 and 5,200,482.40 is: 7,800,723.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,085.60 : 19,152,128.40 = 5,200,482.40 : x
  2. Step 2: Convert to fraction form
    12,768,085.60/19,152,128.40 = 5,200,482.40/x
  3. Step 3: Cross multiply
    12,768,085.60x = 19,152,128.40 × 5,200,482.40
  4. Step 4: Simplify right side
    12,768,085.60x = 99,600,306,666,740.16
  5. Step 5: Solve for x
    x = 99,600,306,666,740.16/12,768,085.60
  6. Step 6: Final answer
    x = 7,800,723.60

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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.