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Finding the Fourth Proportional to 807,156,145.60, 1,208,821,030.80 and 807,156,145.60

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Solution

The fourth proportional to 807,156,145.60, 1,208,821,030.80 and 807,156,145.60 is: 1,208,821,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,156,145.60 : 1,208,821,030.80 = 807,156,145.60 : x
  2. Step 2: Convert to fraction form
    807,156,145.60/1,208,821,030.80 = 807,156,145.60/x
  3. Step 3: Cross multiply
    807,156,145.60x = 1,208,821,030.80 × 807,156,145.60
  4. Step 4: Simplify right side
    807,156,145.60x = 975,707,323,940,746,880
  5. Step 5: Solve for x
    x = 975,707,323,940,746,880/807,156,145.60
  6. Step 6: Final answer
    x = 1,208,821,030.80

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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.