Home / 28,068,190,099.02-38,736,002,746.53-15,856,659,877.46

Finding the Fourth Proportional to 28,068,190,099.02, 38,736,002,746.53 and 15,856,659,877.46

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Solution

The fourth proportional to 28,068,190,099.02, 38,736,002,746.53 and 15,856,659,877.46 is: 21,883,264,236.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068,190,099.02 : 38,736,002,746.53 = 15,856,659,877.46 : x
  2. Step 2: Convert to fraction form
    28,068,190,099.02/38,736,002,746.53 = 15,856,659,877.46/x
  3. Step 3: Cross multiply
    28,068,190,099.02x = 38,736,002,746.53 × 15,856,659,877.46
  4. Step 4: Simplify right side
    28,068,190,099.02x = 614,223,620,563,888,898,048
  5. Step 5: Solve for x
    x = 614,223,620,563,888,898,048/28,068,190,099.02
  6. Step 6: Final answer
    x = 21,883,264,236.03

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Double scale
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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.