Home / 1,200,580,071.85-1,656,852,279.78-664,731,732.25

Finding the Fourth Proportional to 1,200,580,071.85, 1,656,852,279.78 and 664,731,732.25

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Solution

The fourth proportional to 1,200,580,071.85, 1,656,852,279.78 and 664,731,732.25 is: 917,358,460.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,580,071.85 : 1,656,852,279.78 = 664,731,732.25 : x
  2. Step 2: Convert to fraction form
    1,200,580,071.85/1,656,852,279.78 = 664,731,732.25/x
  3. Step 3: Cross multiply
    1,200,580,071.85x = 1,656,852,279.78 × 664,731,732.25
  4. Step 4: Simplify right side
    1,200,580,071.85x = 1,101,362,286,020,521,088
  5. Step 5: Solve for x
    x = 1,101,362,286,020,521,088/1,200,580,071.85
  6. Step 6: Final answer
    x = 917,358,460.17

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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.