Home / 90,527,850,331.12-124,922,804,504.16-49,880,487,139.78

Finding the Fourth Proportional to 90,527,850,331.12, 124,922,804,504.16 and 49,880,487,139.78

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Solution

The fourth proportional to 90,527,850,331.12, 124,922,804,504.16 and 49,880,487,139.78 is: 68,831,970,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,527,850,331.12 : 124,922,804,504.16 = 49,880,487,139.78 : x
  2. Step 2: Convert to fraction form
    90,527,850,331.12/124,922,804,504.16 = 49,880,487,139.78/x
  3. Step 3: Cross multiply
    90,527,850,331.12x = 124,922,804,504.16 × 49,880,487,139.78
  4. Step 4: Simplify right side
    90,527,850,331.12x = 6,231,210,343,535,003,828,224
  5. Step 5: Solve for x
    x = 6,231,210,343,535,003,828,224/90,527,850,331.12
  6. Step 6: Final answer
    x = 68,831,970,722.20

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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.