Home / 90,527,850,678.15-124,922,804,979.42-49,880,487,485.79

Finding the Fourth Proportional to 90,527,850,678.15, 124,922,804,979.42 and 49,880,487,485.79

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Solution

The fourth proportional to 90,527,850,678.15, 124,922,804,979.42 and 49,880,487,485.79 is: 68,831,971,197.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,527,850,678.15 : 124,922,804,979.42 = 49,880,487,485.79 : x
  2. Step 2: Convert to fraction form
    90,527,850,678.15/124,922,804,979.42 = 49,880,487,485.79/x
  3. Step 3: Cross multiply
    90,527,850,678.15x = 124,922,804,979.42 × 49,880,487,485.79
  4. Step 4: Simplify right side
    90,527,850,678.15x = 6,231,210,410,465,744,125,952
  5. Step 5: Solve for x
    x = 6,231,210,410,465,744,125,952/90,527,850,678.15
  6. Step 6: Final answer
    x = 68,831,971,197.67

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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.