Home / 65,619,710,580.40-90,569,768,472.30-39,893,524,018.84

Finding the Fourth Proportional to 65,619,710,580.40, 90,569,768,472.30 and 39,893,524,018.84

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Solution

The fourth proportional to 65,619,710,580.40, 90,569,768,472.30 and 39,893,524,018.84 is: 55,061,919,688.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,619,710,580.40 : 90,569,768,472.30 = 39,893,524,018.84 : x
  2. Step 2: Convert to fraction form
    65,619,710,580.40/90,569,768,472.30 = 39,893,524,018.84/x
  3. Step 3: Cross multiply
    65,619,710,580.40x = 90,569,768,472.30 × 39,893,524,018.84
  4. Step 4: Simplify right side
    65,619,710,580.40x = 3,613,147,233,930,477,830,144
  5. Step 5: Solve for x
    x = 3,613,147,233,930,477,830,144/65,619,710,580.40
  6. Step 6: Final answer
    x = 55,061,919,688.04

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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.