Home / 258,170,384,475.40-386,736,950,314.86-128,555,270,689

Finding the Fourth Proportional to 258,170,384,475.40, 386,736,950,314.86 and 128,555,270,689

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Solution

The fourth proportional to 258,170,384,475.40, 386,736,950,314.86 and 128,555,270,689 is: 192,574,657,368.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,170,384,475.40 : 386,736,950,314.86 = 128,555,270,689 : x
  2. Step 2: Convert to fraction form
    258,170,384,475.40/386,736,950,314.86 = 128,555,270,689/x
  3. Step 3: Cross multiply
    258,170,384,475.40x = 386,736,950,314.86 × 128,555,270,689
  4. Step 4: Simplify right side
    258,170,384,475.40x = 49,717,073,333,165,171,408,896
  5. Step 5: Solve for x
    x = 49,717,073,333,165,171,408,896/258,170,384,475.40
  6. Step 6: Final answer
    x = 192,574,657,368.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.