Home / 908,987,190.90-1,254,426,957.81-556,556,476.02

Finding the Fourth Proportional to 908,987,190.90, 1,254,426,957.81 and 556,556,476.02

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Solution

The fourth proportional to 908,987,190.90, 1,254,426,957.81 and 556,556,476.02 is: 768,063,020.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,987,190.90 : 1,254,426,957.81 = 556,556,476.02 : x
  2. Step 2: Convert to fraction form
    908,987,190.90/1,254,426,957.81 = 556,556,476.02/x
  3. Step 3: Cross multiply
    908,987,190.90x = 1,254,426,957.81 × 556,556,476.02
  4. Step 4: Simplify right side
    908,987,190.90x = 698,159,447,063,222,784
  5. Step 5: Solve for x
    x = 698,159,447,063,222,784/908,987,190.90
  6. Step 6: Final answer
    x = 768,063,020.09

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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.