Home / 30,283,923.60-45,425,885.40-12,090,926.70

Finding the Fourth Proportional to 30,283,923.60, 45,425,885.40 and 12,090,926.70

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Solution

The fourth proportional to 30,283,923.60, 45,425,885.40 and 12,090,926.70 is: 18,136,390.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,283,923.60 : 45,425,885.40 = 12,090,926.70 : x
  2. Step 2: Convert to fraction form
    30,283,923.60/45,425,885.40 = 12,090,926.70/x
  3. Step 3: Cross multiply
    30,283,923.60x = 45,425,885.40 × 12,090,926.70
  4. Step 4: Simplify right side
    30,283,923.60x = 549,241,050,654,000.12
  5. Step 5: Solve for x
    x = 549,241,050,654,000.12/30,283,923.60
  6. Step 6: Final answer
    x = 18,136,390.05

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1.5x scale

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.