Home / 262,656,666.40-393,984,999.60-257,281,895.20

Finding the Fourth Proportional to 262,656,666.40, 393,984,999.60 and 257,281,895.20

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Solution

The fourth proportional to 262,656,666.40, 393,984,999.60 and 257,281,895.20 is: 385,922,842.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,656,666.40 : 393,984,999.60 = 257,281,895.20 : x
  2. Step 2: Convert to fraction form
    262,656,666.40/393,984,999.60 = 257,281,895.20/x
  3. Step 3: Cross multiply
    262,656,666.40x = 393,984,999.60 × 257,281,895.20
  4. Step 4: Simplify right side
    262,656,666.40x = 101,365,207,377,459,248
  5. Step 5: Solve for x
    x = 101,365,207,377,459,248/262,656,666.40
  6. Step 6: Final answer
    x = 385,922,842.80

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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.