Home / 559,872,081.60-839,808,122.40-405,795,307.20

Finding the Fourth Proportional to 559,872,081.60, 839,808,122.40 and 405,795,307.20

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Solution

The fourth proportional to 559,872,081.60, 839,808,122.40 and 405,795,307.20 is: 608,692,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,872,081.60 : 839,808,122.40 = 405,795,307.20 : x
  2. Step 2: Convert to fraction form
    559,872,081.60/839,808,122.40 = 405,795,307.20/x
  3. Step 3: Cross multiply
    559,872,081.60x = 839,808,122.40 × 405,795,307.20
  4. Step 4: Simplify right side
    559,872,081.60x = 340,790,195,018,363,200
  5. Step 5: Solve for x
    x = 340,790,195,018,363,200/559,872,081.60
  6. Step 6: Final answer
    x = 608,692,960.80

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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.