Home / 144,480,544.02-199,382,139.48-78,399,361.74

Finding the Fourth Proportional to 144,480,544.02, 199,382,139.48 and 78,399,361.74

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Solution

The fourth proportional to 144,480,544.02, 199,382,139.48 and 78,399,361.74 is: 108,190,570.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,480,544.02 : 199,382,139.48 = 78,399,361.74 : x
  2. Step 2: Convert to fraction form
    144,480,544.02/199,382,139.48 = 78,399,361.74/x
  3. Step 3: Cross multiply
    144,480,544.02x = 199,382,139.48 × 78,399,361.74
  4. Step 4: Simplify right side
    144,480,544.02x = 15,631,432,477,587,654
  5. Step 5: Solve for x
    x = 15,631,432,477,587,654/144,480,544.02
  6. Step 6: Final answer
    x = 108,190,570.46

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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.