Home / 459,653,720.76-689,476,037.41-210,588,330.03

Finding the Fourth Proportional to 459,653,720.76, 689,476,037.41 and 210,588,330.03

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Solution

The fourth proportional to 459,653,720.76, 689,476,037.41 and 210,588,330.03 is: 315,880,413.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,653,720.76 : 689,476,037.41 = 210,588,330.03 : x
  2. Step 2: Convert to fraction form
    459,653,720.76/689,476,037.41 = 210,588,330.03/x
  3. Step 3: Cross multiply
    459,653,720.76x = 689,476,037.41 × 210,588,330.03
  4. Step 4: Simplify right side
    459,653,720.76x = 145,195,607,311,551,424
  5. Step 5: Solve for x
    x = 145,195,607,311,551,424/459,653,720.76
  6. Step 6: Final answer
    x = 315,880,413.35

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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.