Home / 712,775,259.20-1,068,312,583.20-639,648,977.60

Finding the Fourth Proportional to 712,775,259.20, 1,068,312,583.20 and 639,648,977.60

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Solution

The fourth proportional to 712,775,259.20, 1,068,312,583.20 and 639,648,977.60 is: 958,710,396.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,775,259.20 : 1,068,312,583.20 = 639,648,977.60 : x
  2. Step 2: Convert to fraction form
    712,775,259.20/1,068,312,583.20 = 639,648,977.60/x
  3. Step 3: Cross multiply
    712,775,259.20x = 1,068,312,583.20 × 639,648,977.60
  4. Step 4: Simplify right side
    712,775,259.20x = 683,345,051,601,095,040
  5. Step 5: Solve for x
    x = 683,345,051,601,095,040/712,775,259.20
  6. Step 6: Final answer
    x = 958,710,396.83

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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.