Home / 256,911,471.04-354,538,178.40-139,436,804.92

Finding the Fourth Proportional to 256,911,471.04, 354,538,178.40 and 139,436,804.92

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Solution

The fourth proportional to 256,911,471.04, 354,538,178.40 and 139,436,804.92 is: 192,422,979.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,911,471.04 : 354,538,178.40 = 139,436,804.92 : x
  2. Step 2: Convert to fraction form
    256,911,471.04/354,538,178.40 = 139,436,804.92/x
  3. Step 3: Cross multiply
    256,911,471.04x = 354,538,178.40 × 139,436,804.92
  4. Step 4: Simplify right side
    256,911,471.04x = 49,435,670,818,252,952
  5. Step 5: Solve for x
    x = 49,435,670,818,252,952/256,911,471.04
  6. Step 6: Final answer
    x = 192,422,979.86

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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.