Home / 152,847,043.80-210,900,200.67-90,142,903.50

Finding the Fourth Proportional to 152,847,043.80, 210,900,200.67 and 90,142,903.50

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Solution

The fourth proportional to 152,847,043.80, 210,900,200.67 and 90,142,903.50 is: 124,380,269.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,847,043.80 : 210,900,200.67 = 90,142,903.50 : x
  2. Step 2: Convert to fraction form
    152,847,043.80/210,900,200.67 = 90,142,903.50/x
  3. Step 3: Cross multiply
    152,847,043.80x = 210,900,200.67 × 90,142,903.50
  4. Step 4: Simplify right side
    152,847,043.80x = 19,011,156,437,126,444
  5. Step 5: Solve for x
    x = 19,011,156,437,126,444/152,847,043.80
  6. Step 6: Final answer
    x = 124,380,269.09

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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.