Home / 12,768,036.60-19,152,054.90-9,912,689.40

Finding the Fourth Proportional to 12,768,036.60, 19,152,054.90 and 9,912,689.40

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Solution

The fourth proportional to 12,768,036.60, 19,152,054.90 and 9,912,689.40 is: 14,869,034.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,036.60 : 19,152,054.90 = 9,912,689.40 : x
  2. Step 2: Convert to fraction form
    12,768,036.60/19,152,054.90 = 9,912,689.40/x
  3. Step 3: Cross multiply
    12,768,036.60x = 19,152,054.90 × 9,912,689.40
  4. Step 4: Simplify right side
    12,768,036.60x = 189,848,371,595,448.06
  5. Step 5: Solve for x
    x = 189,848,371,595,448.06/12,768,036.60
  6. Step 6: Final answer
    x = 14,869,034.10

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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.