Home / 28,139,810.40-42,209,715.60-16,613,445.60

Finding the Fourth Proportional to 28,139,810.40, 42,209,715.60 and 16,613,445.60

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Solution

The fourth proportional to 28,139,810.40, 42,209,715.60 and 16,613,445.60 is: 24,920,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139,810.40 : 42,209,715.60 = 16,613,445.60 : x
  2. Step 2: Convert to fraction form
    28,139,810.40/42,209,715.60 = 16,613,445.60/x
  3. Step 3: Cross multiply
    28,139,810.40x = 42,209,715.60 × 16,613,445.60
  4. Step 4: Simplify right side
    28,139,810.40x = 701,248,813,912,071.38
  5. Step 5: Solve for x
    x = 701,248,813,912,071.38/28,139,810.40
  6. Step 6: Final answer
    x = 24,920,168.40

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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.