Home / 1,119,957,773.04-1,545,310,995.29-643,556,090.78

Finding the Fourth Proportional to 1,119,957,773.04, 1,545,310,995.29 and 643,556,090.78

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Solution

The fourth proportional to 1,119,957,773.04, 1,545,310,995.29 and 643,556,090.78 is: 887,974,821.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,957,773.04 : 1,545,310,995.29 = 643,556,090.78 : x
  2. Step 2: Convert to fraction form
    1,119,957,773.04/1,545,310,995.29 = 643,556,090.78/x
  3. Step 3: Cross multiply
    1,119,957,773.04x = 1,545,310,995.29 × 643,556,090.78
  4. Step 4: Simplify right side
    1,119,957,773.04x = 994,494,303,168,183,296
  5. Step 5: Solve for x
    x = 994,494,303,168,183,296/1,119,957,773.04
  6. Step 6: Final answer
    x = 887,974,821.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.