Home / 28,003,280.40-42,004,920.60-12,078,032.40

Finding the Fourth Proportional to 28,003,280.40, 42,004,920.60 and 12,078,032.40

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Solution

The fourth proportional to 28,003,280.40, 42,004,920.60 and 12,078,032.40 is: 18,117,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003,280.40 : 42,004,920.60 = 12,078,032.40 : x
  2. Step 2: Convert to fraction form
    28,003,280.40/42,004,920.60 = 12,078,032.40/x
  3. Step 3: Cross multiply
    28,003,280.40x = 42,004,920.60 × 12,078,032.40
  4. Step 4: Simplify right side
    28,003,280.40x = 507,336,791,966,227.50
  5. Step 5: Solve for x
    x = 507,336,791,966,227.50/28,003,280.40
  6. Step 6: Final answer
    x = 18,117,048.60

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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.