Home / 210,064,664.58-315,143,842.95-64,512,915

Finding the Fourth Proportional to 210,064,664.58, 315,143,842.95 and 64,512,915

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Solution

The fourth proportional to 210,064,664.58, 315,143,842.95 and 64,512,915 is: 96,783,759.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,064,664.58 : 315,143,842.95 = 64,512,915 : x
  2. Step 2: Convert to fraction form
    210,064,664.58/315,143,842.95 = 64,512,915/x
  3. Step 3: Cross multiply
    210,064,664.58x = 315,143,842.95 × 64,512,915
  4. Step 4: Simplify right side
    210,064,664.58x = 20,330,847,953,006,700
  5. Step 5: Solve for x
    x = 20,330,847,953,006,700/210,064,664.58
  6. Step 6: Final answer
    x = 96,783,759.39

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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.