Home / 780,021,965.60-1,170,331,546.80-767,779,431.20

Finding the Fourth Proportional to 780,021,965.60, 1,170,331,546.80 and 767,779,431.20

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Solution

The fourth proportional to 780,021,965.60, 1,170,331,546.80 and 767,779,431.20 is: 1,151,963,058.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,021,965.60 : 1,170,331,546.80 = 767,779,431.20 : x
  2. Step 2: Convert to fraction form
    780,021,965.60/1,170,331,546.80 = 767,779,431.20/x
  3. Step 3: Cross multiply
    780,021,965.60x = 1,170,331,546.80 × 767,779,431.20
  4. Step 4: Simplify right side
    780,021,965.60x = 898,556,489,317,520,256
  5. Step 5: Solve for x
    x = 898,556,489,317,520,256/780,021,965.60
  6. Step 6: Final answer
    x = 1,151,963,058.66

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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.