Home / 70,348,986.40-105,523,479.60-53,104,928.80

Finding the Fourth Proportional to 70,348,986.40, 105,523,479.60 and 53,104,928.80

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Solution

The fourth proportional to 70,348,986.40, 105,523,479.60 and 53,104,928.80 is: 79,657,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,348,986.40 : 105,523,479.60 = 53,104,928.80 : x
  2. Step 2: Convert to fraction form
    70,348,986.40/105,523,479.60 = 53,104,928.80/x
  3. Step 3: Cross multiply
    70,348,986.40x = 105,523,479.60 × 53,104,928.80
  4. Step 4: Simplify right side
    70,348,986.40x = 5,603,816,870,886,252
  5. Step 5: Solve for x
    x = 5,603,816,870,886,252/70,348,986.40
  6. Step 6: Final answer
    x = 79,657,393.20

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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.