Home / 10,720,697.49-14,787,080.55-7,048,440.18

Finding the Fourth Proportional to 10,720,697.49, 14,787,080.55 and 7,048,440.18

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Solution

The fourth proportional to 10,720,697.49, 14,787,080.55 and 7,048,440.18 is: 9,721,928.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720,697.49 : 14,787,080.55 = 7,048,440.18 : x
  2. Step 2: Convert to fraction form
    10,720,697.49/14,787,080.55 = 7,048,440.18/x
  3. Step 3: Cross multiply
    10,720,697.49x = 14,787,080.55 × 7,048,440.18
  4. Step 4: Simplify right side
    10,720,697.49x = 104,225,852,693,516.50
  5. Step 5: Solve for x
    x = 104,225,852,693,516.50/10,720,697.49
  6. Step 6: Final answer
    x = 9,721,928.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.