Home / 30,283,903.60-45,425,855.40-12,090,906.70

Finding the Fourth Proportional to 30,283,903.60, 45,425,855.40 and 12,090,906.70

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Solution

The fourth proportional to 30,283,903.60, 45,425,855.40 and 12,090,906.70 is: 18,136,360.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,283,903.60 : 45,425,855.40 = 12,090,906.70 : x
  2. Step 2: Convert to fraction form
    30,283,903.60/45,425,855.40 = 12,090,906.70/x
  3. Step 3: Cross multiply
    30,283,903.60x = 45,425,855.40 × 12,090,906.70
  4. Step 4: Simplify right side
    30,283,903.60x = 549,239,779,409,091.12
  5. Step 5: Solve for x
    x = 549,239,779,409,091.12/30,283,903.60
  6. Step 6: Final answer
    x = 18,136,360.05

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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.