Home / 869,048,189.82-1,199,249,994.96-492,730,093.80

Finding the Fourth Proportional to 869,048,189.82, 1,199,249,994.96 and 492,730,093.80

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Solution

The fourth proportional to 869,048,189.82, 1,199,249,994.96 and 492,730,093.80 is: 679,946,830.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,048,189.82 : 1,199,249,994.96 = 492,730,093.80 : x
  2. Step 2: Convert to fraction form
    869,048,189.82/1,199,249,994.96 = 492,730,093.80/x
  3. Step 3: Cross multiply
    869,048,189.82x = 1,199,249,994.96 × 492,730,093.80
  4. Step 4: Simplify right side
    869,048,189.82x = 590,906,562,506,290,304
  5. Step 5: Solve for x
    x = 590,906,562,506,290,304/869,048,189.82
  6. Step 6: Final answer
    x = 679,946,830.83

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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.