Home / 90,641,285,478.15-125,085,362,838.69-49,442,563,069.64

Finding the Fourth Proportional to 90,641,285,478.15, 125,085,362,838.69 and 49,442,563,069.64

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Solution

The fourth proportional to 90,641,285,478.15, 125,085,362,838.69 and 49,442,563,069.64 is: 68,230,949,159.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,641,285,478.15 : 125,085,362,838.69 = 49,442,563,069.64 : x
  2. Step 2: Convert to fraction form
    90,641,285,478.15/125,085,362,838.69 = 49,442,563,069.64/x
  3. Step 3: Cross multiply
    90,641,285,478.15x = 125,085,362,838.69 × 49,442,563,069.64
  4. Step 4: Simplify right side
    90,641,285,478.15x = 6,184,540,941,240,734,056,448
  5. Step 5: Solve for x
    x = 6,184,540,941,240,734,056,448/90,641,285,478.15
  6. Step 6: Final answer
    x = 68,230,949,159.82

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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.