Home / 10,457,970.40-15,718,448.40-9,072,287.20

Finding the Fourth Proportional to 10,457,970.40, 15,718,448.40 and 9,072,287.20

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Solution

The fourth proportional to 10,457,970.40, 15,718,448.40 and 9,072,287.20 is: 13,635,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,457,970.40 : 15,718,448.40 = 9,072,287.20 : x
  2. Step 2: Convert to fraction form
    10,457,970.40/15,718,448.40 = 9,072,287.20/x
  3. Step 3: Cross multiply
    10,457,970.40x = 15,718,448.40 × 9,072,287.20
  4. Step 4: Simplify right side
    10,457,970.40x = 142,602,278,223,180.47
  5. Step 5: Solve for x
    x = 142,602,278,223,180.47/10,457,970.40
  6. Step 6: Final answer
    x = 13,635,750.80

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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.