Home / 1,120,721,537.60-1,678,814,824.80-776,064,334.40

Finding the Fourth Proportional to 1,120,721,537.60, 1,678,814,824.80 and 776,064,334.40

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Solution

The fourth proportional to 1,120,721,537.60, 1,678,814,824.80 and 776,064,334.40 is: 1,162,526,342.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,721,537.60 : 1,678,814,824.80 = 776,064,334.40 : x
  2. Step 2: Convert to fraction form
    1,120,721,537.60/1,678,814,824.80 = 776,064,334.40/x
  3. Step 3: Cross multiply
    1,120,721,537.60x = 1,678,814,824.80 × 776,064,334.40
  4. Step 4: Simplify right side
    1,120,721,537.60x = 1,302,868,309,589,264,640
  5. Step 5: Solve for x
    x = 1,302,868,309,589,264,640/1,120,721,537.60
  6. Step 6: Final answer
    x = 1,162,526,342.07

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1.5x scale

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.