Home / 560,057,430.86-772,879,394.67-309,161,968.46

Finding the Fourth Proportional to 560,057,430.86, 772,879,394.67 and 309,161,968.46

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Solution

The fourth proportional to 560,057,430.86, 772,879,394.67 and 309,161,968.46 is: 426,643,593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,057,430.86 : 772,879,394.67 = 309,161,968.46 : x
  2. Step 2: Convert to fraction form
    560,057,430.86/772,879,394.67 = 309,161,968.46/x
  3. Step 3: Cross multiply
    560,057,430.86x = 772,879,394.67 × 309,161,968.46
  4. Step 4: Simplify right side
    560,057,430.86x = 238,944,915,038,350,400
  5. Step 5: Solve for x
    x = 238,944,915,038,350,400/560,057,430.86
  6. Step 6: Final answer
    x = 426,643,593.80

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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.