Home / 896,860,821.80-1,345,291,232.73-858,118,772.90

Finding the Fourth Proportional to 896,860,821.80, 1,345,291,232.73 and 858,118,772.90

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Solution

The fourth proportional to 896,860,821.80, 1,345,291,232.73 and 858,118,772.90 is: 1,287,178,159.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,860,821.80 : 1,345,291,232.73 = 858,118,772.90 : x
  2. Step 2: Convert to fraction form
    896,860,821.80/1,345,291,232.73 = 858,118,772.90/x
  3. Step 3: Cross multiply
    896,860,821.80x = 1,345,291,232.73 × 858,118,772.90
  4. Step 4: Simplify right side
    896,860,821.80x = 1,154,419,661,823,395,840
  5. Step 5: Solve for x
    x = 1,154,419,661,823,395,840/896,860,821.80
  6. Step 6: Final answer
    x = 1,287,178,159.38

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1.5x scale

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.