Home / 417,312,032.40-625,464,163.80-212,734,803.60

Finding the Fourth Proportional to 417,312,032.40, 625,464,163.80 and 212,734,803.60

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Solution

The fourth proportional to 417,312,032.40, 625,464,163.80 and 212,734,803.60 is: 318,845,338.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,312,032.40 : 625,464,163.80 = 212,734,803.60 : x
  2. Step 2: Convert to fraction form
    417,312,032.40/625,464,163.80 = 212,734,803.60/x
  3. Step 3: Cross multiply
    417,312,032.40x = 625,464,163.80 × 212,734,803.60
  4. Step 4: Simplify right side
    417,312,032.40x = 133,057,996,044,831,216
  5. Step 5: Solve for x
    x = 133,057,996,044,831,216/417,312,032.40
  6. Step 6: Final answer
    x = 318,845,338.05

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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.