Home / 144,480,548.02-199,382,145-78,399,365.74

Finding the Fourth Proportional to 144,480,548.02, 199,382,145 and 78,399,365.74

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Solution

The fourth proportional to 144,480,548.02, 199,382,145 and 78,399,365.74 is: 108,190,575.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,480,548.02 : 199,382,145 = 78,399,365.74 : x
  2. Step 2: Convert to fraction form
    144,480,548.02/199,382,145 = 78,399,365.74/x
  3. Step 3: Cross multiply
    144,480,548.02x = 199,382,145 × 78,399,365.74
  4. Step 4: Simplify right side
    144,480,548.02x = 15,631,433,707,880,712
  5. Step 5: Solve for x
    x = 15,631,433,707,880,712/144,480,548.02
  6. Step 6: Final answer
    x = 108,190,575.98

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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.