Home / 402,409,281.20-603,613,921.80-345,013,653.20

Finding the Fourth Proportional to 402,409,281.20, 603,613,921.80 and 345,013,653.20

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Solution

The fourth proportional to 402,409,281.20, 603,613,921.80 and 345,013,653.20 is: 517,520,479.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,409,281.20 : 603,613,921.80 = 345,013,653.20 : x
  2. Step 2: Convert to fraction form
    402,409,281.20/603,613,921.80 = 345,013,653.20/x
  3. Step 3: Cross multiply
    402,409,281.20x = 603,613,921.80 × 345,013,653.20
  4. Step 4: Simplify right side
    402,409,281.20x = 208,255,044,282,597,088
  5. Step 5: Solve for x
    x = 208,255,044,282,597,088/402,409,281.20
  6. Step 6: Final answer
    x = 517,520,479.80

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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.