Home / 768,477,666.89-1,152,716,666.65-277,190,895.87

Finding the Fourth Proportional to 768,477,666.89, 1,152,716,666.65 and 277,190,895.87

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Solution

The fourth proportional to 768,477,666.89, 1,152,716,666.65 and 277,190,895.87 is: 415,786,403.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,477,666.89 : 1,152,716,666.65 = 277,190,895.87 : x
  2. Step 2: Convert to fraction form
    768,477,666.89/1,152,716,666.65 = 277,190,895.87/x
  3. Step 3: Cross multiply
    768,477,666.89x = 1,152,716,666.65 × 277,190,895.87
  4. Step 4: Simplify right side
    768,477,666.89x = 319,522,565,512,300,672
  5. Step 5: Solve for x
    x = 319,522,565,512,300,672/768,477,666.89
  6. Step 6: Final answer
    x = 415,786,403.79

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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.