Home / 6,739,985.60-10,109,978.40-1,947,831.20

Finding the Fourth Proportional to 6,739,985.60, 10,109,978.40 and 1,947,831.20

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Solution

The fourth proportional to 6,739,985.60, 10,109,978.40 and 1,947,831.20 is: 2,921,746.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,739,985.60 : 10,109,978.40 = 1,947,831.20 : x
  2. Step 2: Convert to fraction form
    6,739,985.60/10,109,978.40 = 1,947,831.20/x
  3. Step 3: Cross multiply
    6,739,985.60x = 10,109,978.40 × 1,947,831.20
  4. Step 4: Simplify right side
    6,739,985.60x = 19,692,531,358,846.08
  5. Step 5: Solve for x
    x = 19,692,531,358,846.08/6,739,985.60
  6. Step 6: Final answer
    x = 2,921,746.80

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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.