Home / 30,283,901.60-45,425,852.40-12,090,904.70

Finding the Fourth Proportional to 30,283,901.60, 45,425,852.40 and 12,090,904.70

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Solution

The fourth proportional to 30,283,901.60, 45,425,852.40 and 12,090,904.70 is: 18,136,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,283,901.60 : 45,425,852.40 = 12,090,904.70 : x
  2. Step 2: Convert to fraction form
    30,283,901.60/45,425,852.40 = 12,090,904.70/x
  3. Step 3: Cross multiply
    30,283,901.60x = 45,425,852.40 × 12,090,904.70
  4. Step 4: Simplify right side
    30,283,901.60x = 549,239,652,284,666.25
  5. Step 5: Solve for x
    x = 549,239,652,284,666.25/30,283,901.60
  6. Step 6: Final answer
    x = 18,136,357.05

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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.