Home / 626,624,139.42-864,043,963.83-428,417,787.42

Finding the Fourth Proportional to 626,624,139.42, 864,043,963.83 and 428,417,787.42

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Solution

The fourth proportional to 626,624,139.42, 864,043,963.83 and 428,417,787.42 is: 590,739,775.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,624,139.42 : 864,043,963.83 = 428,417,787.42 : x
  2. Step 2: Convert to fraction form
    626,624,139.42/864,043,963.83 = 428,417,787.42/x
  3. Step 3: Cross multiply
    626,624,139.42x = 864,043,963.83 × 428,417,787.42
  4. Step 4: Simplify right side
    626,624,139.42x = 370,171,803,217,655,168
  5. Step 5: Solve for x
    x = 370,171,803,217,655,168/626,624,139.42
  6. Step 6: Final answer
    x = 590,739,775.14

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1.5x scale

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.