Home / 15,283,143.54-21,076,262.37-9,778,260.42

Finding the Fourth Proportional to 15,283,143.54, 21,076,262.37 and 9,778,260.42

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Solution

The fourth proportional to 15,283,143.54, 21,076,262.37 and 9,778,260.42 is: 13,484,737.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,283,143.54 : 21,076,262.37 = 9,778,260.42 : x
  2. Step 2: Convert to fraction form
    15,283,143.54/21,076,262.37 = 9,778,260.42/x
  3. Step 3: Cross multiply
    15,283,143.54x = 21,076,262.37 × 9,778,260.42
  4. Step 4: Simplify right side
    15,283,143.54x = 206,089,182,134,106.41
  5. Step 5: Solve for x
    x = 206,089,182,134,106.41/15,283,143.54
  6. Step 6: Final answer
    x = 13,484,737.72

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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.