Home / 70,002,003.80-105,003,005.70-45,815,533.40

Finding the Fourth Proportional to 70,002,003.80, 105,003,005.70 and 45,815,533.40

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Solution

The fourth proportional to 70,002,003.80, 105,003,005.70 and 45,815,533.40 is: 68,723,300.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,002,003.80 : 105,003,005.70 = 45,815,533.40 : x
  2. Step 2: Convert to fraction form
    70,002,003.80/105,003,005.70 = 45,815,533.40/x
  3. Step 3: Cross multiply
    70,002,003.80x = 105,003,005.70 × 45,815,533.40
  4. Step 4: Simplify right side
    70,002,003.80x = 4,810,768,714,748,740
  5. Step 5: Solve for x
    x = 4,810,768,714,748,740/70,002,003.80
  6. Step 6: Final answer
    x = 68,723,300.10

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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.