Home / 472,395,628.80-708,593,443.20-290,745,158.40

Finding the Fourth Proportional to 472,395,628.80, 708,593,443.20 and 290,745,158.40

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Solution

The fourth proportional to 472,395,628.80, 708,593,443.20 and 290,745,158.40 is: 436,117,737.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,395,628.80 : 708,593,443.20 = 290,745,158.40 : x
  2. Step 2: Convert to fraction form
    472,395,628.80/708,593,443.20 = 290,745,158.40/x
  3. Step 3: Cross multiply
    472,395,628.80x = 708,593,443.20 × 290,745,158.40
  4. Step 4: Simplify right side
    472,395,628.80x = 206,020,112,884,385,408
  5. Step 5: Solve for x
    x = 206,020,112,884,385,408/472,395,628.80
  6. Step 6: Final answer
    x = 436,117,737.60

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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.