Home / 770,293,840.80-1,155,590,060.40-387,341,392.80

Finding the Fourth Proportional to 770,293,840.80, 1,155,590,060.40 and 387,341,392.80

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Solution

The fourth proportional to 770,293,840.80, 1,155,590,060.40 and 387,341,392.80 is: 581,087,164.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,293,840.80 : 1,155,590,060.40 = 387,341,392.80 : x
  2. Step 2: Convert to fraction form
    770,293,840.80/1,155,590,060.40 = 387,341,392.80/x
  3. Step 3: Cross multiply
    770,293,840.80x = 1,155,590,060.40 × 387,341,392.80
  4. Step 4: Simplify right side
    770,293,840.80x = 447,607,863,501,172,160
  5. Step 5: Solve for x
    x = 447,607,863,501,172,160/770,293,840.80
  6. Step 6: Final answer
    x = 581,087,164.14

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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.