Home / 781,662,565.29-1,172,531,556.27-257,020,051.02

Finding the Fourth Proportional to 781,662,565.29, 1,172,531,556.27 and 257,020,051.02

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Solution

The fourth proportional to 781,662,565.29, 1,172,531,556.27 and 257,020,051.02 is: 385,542,475.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,662,565.29 : 1,172,531,556.27 = 257,020,051.02 : x
  2. Step 2: Convert to fraction form
    781,662,565.29/1,172,531,556.27 = 257,020,051.02/x
  3. Step 3: Cross multiply
    781,662,565.29x = 1,172,531,556.27 × 257,020,051.02
  4. Step 4: Simplify right side
    781,662,565.29x = 301,364,120,415,075,392
  5. Step 5: Solve for x
    x = 301,364,120,415,075,392/781,662,565.29
  6. Step 6: Final answer
    x = 385,542,475.48

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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.