Home / 113,315,529.60-169,973,294.40-78,878,152.80

Finding the Fourth Proportional to 113,315,529.60, 169,973,294.40 and 78,878,152.80

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Solution

The fourth proportional to 113,315,529.60, 169,973,294.40 and 78,878,152.80 is: 118,317,229.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,315,529.60 : 169,973,294.40 = 78,878,152.80 : x
  2. Step 2: Convert to fraction form
    113,315,529.60/169,973,294.40 = 78,878,152.80/x
  3. Step 3: Cross multiply
    113,315,529.60x = 169,973,294.40 × 78,878,152.80
  4. Step 4: Simplify right side
    113,315,529.60x = 13,407,179,487,602,584
  5. Step 5: Solve for x
    x = 13,407,179,487,602,584/113,315,529.60
  6. Step 6: Final answer
    x = 118,317,229.20

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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.