Home / 30,020,607.81-45,031,648.95-8,455,063.59

Finding the Fourth Proportional to 30,020,607.81, 45,031,648.95 and 8,455,063.59

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Solution

The fourth proportional to 30,020,607.81, 45,031,648.95 and 8,455,063.59 is: 12,682,803.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020,607.81 : 45,031,648.95 = 8,455,063.59 : x
  2. Step 2: Convert to fraction form
    30,020,607.81/45,031,648.95 = 8,455,063.59/x
  3. Step 3: Cross multiply
    30,020,607.81x = 45,031,648.95 × 8,455,063.59
  4. Step 4: Simplify right side
    30,020,607.81x = 380,745,455,434,806.75
  5. Step 5: Solve for x
    x = 380,745,455,434,806.75/30,020,607.81
  6. Step 6: Final answer
    x = 12,682,803.02

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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.