Home / 498,226,994.45-687,574,140.35-286,533,990.34

Finding the Fourth Proportional to 498,226,994.45, 687,574,140.35 and 286,533,990.34

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Solution

The fourth proportional to 498,226,994.45, 687,574,140.35 and 286,533,990.34 is: 395,428,919.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,226,994.45 : 687,574,140.35 = 286,533,990.34 : x
  2. Step 2: Convert to fraction form
    498,226,994.45/687,574,140.35 = 286,533,990.34/x
  3. Step 3: Cross multiply
    498,226,994.45x = 687,574,140.35 × 286,533,990.34
  4. Step 4: Simplify right side
    498,226,994.45x = 197,013,362,089,080,704
  5. Step 5: Solve for x
    x = 197,013,362,089,080,704/498,226,994.45
  6. Step 6: Final answer
    x = 395,428,919.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.