Home / 12,528,028.60-18,792,042.90-7,048,281.40

Finding the Fourth Proportional to 12,528,028.60, 18,792,042.90 and 7,048,281.40

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Solution

The fourth proportional to 12,528,028.60, 18,792,042.90 and 7,048,281.40 is: 10,572,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,028.60 : 18,792,042.90 = 7,048,281.40 : x
  2. Step 2: Convert to fraction form
    12,528,028.60/18,792,042.90 = 7,048,281.40/x
  3. Step 3: Cross multiply
    12,528,028.60x = 18,792,042.90 × 7,048,281.40
  4. Step 4: Simplify right side
    12,528,028.60x = 132,451,606,440,072.06
  5. Step 5: Solve for x
    x = 132,451,606,440,072.06/12,528,028.60
  6. Step 6: Final answer
    x = 10,572,422.10

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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.