Home / 54,402,278.60-81,603,417.90-42,072,847.40

Finding the Fourth Proportional to 54,402,278.60, 81,603,417.90 and 42,072,847.40

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Solution

The fourth proportional to 54,402,278.60, 81,603,417.90 and 42,072,847.40 is: 63,109,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,402,278.60 : 81,603,417.90 = 42,072,847.40 : x
  2. Step 2: Convert to fraction form
    54,402,278.60/81,603,417.90 = 42,072,847.40/x
  3. Step 3: Cross multiply
    54,402,278.60x = 81,603,417.90 × 42,072,847.40
  4. Step 4: Simplify right side
    54,402,278.60x = 3,433,288,148,625,128.50
  5. Step 5: Solve for x
    x = 3,433,288,148,625,128.50/54,402,278.60
  6. Step 6: Final answer
    x = 63,109,271.10

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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.