Home / 989,739,265.20-1,484,608,897.80-343,507,009.20

Finding the Fourth Proportional to 989,739,265.20, 1,484,608,897.80 and 343,507,009.20

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Solution

The fourth proportional to 989,739,265.20, 1,484,608,897.80 and 343,507,009.20 is: 515,260,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,739,265.20 : 1,484,608,897.80 = 343,507,009.20 : x
  2. Step 2: Convert to fraction form
    989,739,265.20/1,484,608,897.80 = 343,507,009.20/x
  3. Step 3: Cross multiply
    989,739,265.20x = 1,484,608,897.80 × 343,507,009.20
  4. Step 4: Simplify right side
    989,739,265.20x = 509,973,562,314,986,432
  5. Step 5: Solve for x
    x = 509,973,562,314,986,432/989,739,265.20
  6. Step 6: Final answer
    x = 515,260,513.80

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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.