Home / 2,166,734,631.53-2,990,094,225.15-1,319,961,909.75

Finding the Fourth Proportional to 2,166,734,631.53, 2,990,094,225.15 and 1,319,961,909.75

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Solution

The fourth proportional to 2,166,734,631.53, 2,990,094,225.15 and 1,319,961,909.75 is: 1,821,547,699.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,734,631.53 : 2,990,094,225.15 = 1,319,961,909.75 : x
  2. Step 2: Convert to fraction form
    2,166,734,631.53/2,990,094,225.15 = 1,319,961,909.75/x
  3. Step 3: Cross multiply
    2,166,734,631.53x = 2,990,094,225.15 × 1,319,961,909.75
  4. Step 4: Simplify right side
    2,166,734,631.53x = 3,946,810,483,754,961,920
  5. Step 5: Solve for x
    x = 3,946,810,483,754,961,920/2,166,734,631.53
  6. Step 6: Final answer
    x = 1,821,547,699.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.