Home / 459,664,609.20-689,496,913.80-402,268,981.20

Finding the Fourth Proportional to 459,664,609.20, 689,496,913.80 and 402,268,981.20

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Solution

The fourth proportional to 459,664,609.20, 689,496,913.80 and 402,268,981.20 is: 603,403,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,664,609.20 : 689,496,913.80 = 402,268,981.20 : x
  2. Step 2: Convert to fraction form
    459,664,609.20/689,496,913.80 = 402,268,981.20/x
  3. Step 3: Cross multiply
    459,664,609.20x = 689,496,913.80 × 402,268,981.20
  4. Step 4: Simplify right side
    459,664,609.20x = 277,363,221,054,870,208
  5. Step 5: Solve for x
    x = 277,363,221,054,870,208/459,664,609.20
  6. Step 6: Final answer
    x = 603,403,471.80

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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.