Home / 970,060,487.40-1,455,090,731.10-279,990,253.80

Finding the Fourth Proportional to 970,060,487.40, 1,455,090,731.10 and 279,990,253.80

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Solution

The fourth proportional to 970,060,487.40, 1,455,090,731.10 and 279,990,253.80 is: 419,985,380.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,060,487.40 : 1,455,090,731.10 = 279,990,253.80 : x
  2. Step 2: Convert to fraction form
    970,060,487.40/1,455,090,731.10 = 279,990,253.80/x
  3. Step 3: Cross multiply
    970,060,487.40x = 1,455,090,731.10 × 279,990,253.80
  4. Step 4: Simplify right side
    970,060,487.40x = 407,411,223,102,716,544
  5. Step 5: Solve for x
    x = 407,411,223,102,716,544/970,060,487.40
  6. Step 6: Final answer
    x = 419,985,380.70

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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.