Home / 403,704,973.46-557,113,087.50-218,065,990.98

Finding the Fourth Proportional to 403,704,973.46, 557,113,087.50 and 218,065,990.98

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Solution

The fourth proportional to 403,704,973.46, 557,113,087.50 and 218,065,990.98 is: 300,931,188.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,704,973.46 : 557,113,087.50 = 218,065,990.98 : x
  2. Step 2: Convert to fraction form
    403,704,973.46/557,113,087.50 = 218,065,990.98/x
  3. Step 3: Cross multiply
    403,704,973.46x = 557,113,087.50 × 218,065,990.98
  4. Step 4: Simplify right side
    403,704,973.46x = 121,487,417,513,614,944
  5. Step 5: Solve for x
    x = 121,487,417,513,614,944/403,704,973.46
  6. Step 6: Final answer
    x = 300,931,188.62

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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.