Home / 1,372,172,060.88-1,893,596,003.40-745,638,998.32

Finding the Fourth Proportional to 1,372,172,060.88, 1,893,596,003.40 and 745,638,998.32

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Solution

The fourth proportional to 1,372,172,060.88, 1,893,596,003.40 and 745,638,998.32 is: 1,028,981,034.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,172,060.88 : 1,893,596,003.40 = 745,638,998.32 : x
  2. Step 2: Convert to fraction form
    1,372,172,060.88/1,893,596,003.40 = 745,638,998.32/x
  3. Step 3: Cross multiply
    1,372,172,060.88x = 1,893,596,003.40 × 745,638,998.32
  4. Step 4: Simplify right side
    1,372,172,060.88x = 1,411,939,027,197,931,520
  5. Step 5: Solve for x
    x = 1,411,939,027,197,931,520/1,372,172,060.88
  6. Step 6: Final answer
    x = 1,028,981,034.85

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Double scale
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1.5x scale

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.