Home / 1,421,158,164.85-1,961,066,653.04-786,064,988.35

Finding the Fourth Proportional to 1,421,158,164.85, 1,961,066,653.04 and 786,064,988.35

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Solution

The fourth proportional to 1,421,158,164.85, 1,961,066,653.04 and 786,064,988.35 is: 1,084,696,885.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,158,164.85 : 1,961,066,653.04 = 786,064,988.35 : x
  2. Step 2: Convert to fraction form
    1,421,158,164.85/1,961,066,653.04 = 786,064,988.35/x
  3. Step 3: Cross multiply
    1,421,158,164.85x = 1,961,066,653.04 × 786,064,988.35
  4. Step 4: Simplify right side
    1,421,158,164.85x = 1,541,525,835,764,454,656
  5. Step 5: Solve for x
    x = 1,541,525,835,764,454,656/1,421,158,164.85
  6. Step 6: Final answer
    x = 1,084,696,885.89

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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.