Home / 30,271,283.80-45,406,925.70-21,183,642.70

Finding the Fourth Proportional to 30,271,283.80, 45,406,925.70 and 21,183,642.70

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Solution

The fourth proportional to 30,271,283.80, 45,406,925.70 and 21,183,642.70 is: 31,775,464.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,271,283.80 : 45,406,925.70 = 21,183,642.70 : x
  2. Step 2: Convert to fraction form
    30,271,283.80/45,406,925.70 = 21,183,642.70/x
  3. Step 3: Cross multiply
    30,271,283.80x = 45,406,925.70 × 21,183,642.70
  4. Step 4: Simplify right side
    30,271,283.80x = 961,884,090,134,247.38
  5. Step 5: Solve for x
    x = 961,884,090,134,247.38/30,271,283.80
  6. Step 6: Final answer
    x = 31,775,464.05

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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.