Home / 896,760,007.20-1,345,140,010.80-651,871,994.40

Finding the Fourth Proportional to 896,760,007.20, 1,345,140,010.80 and 651,871,994.40

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Solution

The fourth proportional to 896,760,007.20, 1,345,140,010.80 and 651,871,994.40 is: 977,807,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,760,007.20 : 1,345,140,010.80 = 651,871,994.40 : x
  2. Step 2: Convert to fraction form
    896,760,007.20/1,345,140,010.80 = 651,871,994.40/x
  3. Step 3: Cross multiply
    896,760,007.20x = 1,345,140,010.80 × 651,871,994.40
  4. Step 4: Simplify right side
    896,760,007.20x = 876,859,101,587,433,472
  5. Step 5: Solve for x
    x = 876,859,101,587,433,472/896,760,007.20
  6. Step 6: Final answer
    x = 977,807,991.60

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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.