Home / 146,705,859.60-220,058,789.40-78,681,411.60

Finding the Fourth Proportional to 146,705,859.60, 220,058,789.40 and 78,681,411.60

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Solution

The fourth proportional to 146,705,859.60, 220,058,789.40 and 78,681,411.60 is: 118,022,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,705,859.60 : 220,058,789.40 = 78,681,411.60 : x
  2. Step 2: Convert to fraction form
    146,705,859.60/220,058,789.40 = 78,681,411.60/x
  3. Step 3: Cross multiply
    146,705,859.60x = 220,058,789.40 × 78,681,411.60
  4. Step 4: Simplify right side
    146,705,859.60x = 17,314,536,184,979,116
  5. Step 5: Solve for x
    x = 17,314,536,184,979,116/146,705,859.60
  6. Step 6: Final answer
    x = 118,022,117.40

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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.