Home / 509,749,899.59-703,416,833.51-286,688,485.89

Finding the Fourth Proportional to 509,749,899.59, 703,416,833.51 and 286,688,485.89

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Solution

The fourth proportional to 509,749,899.59, 703,416,833.51 and 286,688,485.89 is: 395,608,723.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,749,899.59 : 703,416,833.51 = 286,688,485.89 : x
  2. Step 2: Convert to fraction form
    509,749,899.59/703,416,833.51 = 286,688,485.89/x
  3. Step 3: Cross multiply
    509,749,899.59x = 703,416,833.51 × 286,688,485.89
  4. Step 4: Simplify right side
    509,749,899.59x = 201,661,506,947,086,656
  5. Step 5: Solve for x
    x = 201,661,506,947,086,656/509,749,899.59
  6. Step 6: Final answer
    x = 395,608,723.24

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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.