Home / 748,773,370.80-1,121,007,720.15-458,208,004.05

Finding the Fourth Proportional to 748,773,370.80, 1,121,007,720.15 and 458,208,004.05

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Solution

The fourth proportional to 748,773,370.80, 1,121,007,720.15 and 458,208,004.05 is: 685,994,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,773,370.80 : 1,121,007,720.15 = 458,208,004.05 : x
  2. Step 2: Convert to fraction form
    748,773,370.80/1,121,007,720.15 = 458,208,004.05/x
  3. Step 3: Cross multiply
    748,773,370.80x = 1,121,007,720.15 × 458,208,004.05
  4. Step 4: Simplify right side
    748,773,370.80x = 513,654,709,974,572,544
  5. Step 5: Solve for x
    x = 513,654,709,974,572,544/748,773,370.80
  6. Step 6: Final answer
    x = 685,994,895.13

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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.