Home / 199,746,015.40-299,619,023.10-56,138,847.40

Finding the Fourth Proportional to 199,746,015.40, 299,619,023.10 and 56,138,847.40

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Solution

The fourth proportional to 199,746,015.40, 299,619,023.10 and 56,138,847.40 is: 84,208,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,746,015.40 : 299,619,023.10 = 56,138,847.40 : x
  2. Step 2: Convert to fraction form
    199,746,015.40/299,619,023.10 = 56,138,847.40/x
  3. Step 3: Cross multiply
    199,746,015.40x = 299,619,023.10 × 56,138,847.40
  4. Step 4: Simplify right side
    199,746,015.40x = 16,820,266,615,947,976
  5. Step 5: Solve for x
    x = 16,820,266,615,947,976/199,746,015.40
  6. Step 6: Final answer
    x = 84,208,271.10

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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.