Home / 85,634,984.12-118,177,128.78-46,477,108.76

Finding the Fourth Proportional to 85,634,984.12, 118,177,128.78 and 46,477,108.76

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Solution

The fourth proportional to 85,634,984.12, 118,177,128.78 and 46,477,108.76 is: 64,138,871.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,634,984.12 : 118,177,128.78 = 46,477,108.76 : x
  2. Step 2: Convert to fraction form
    85,634,984.12/118,177,128.78 = 46,477,108.76/x
  3. Step 3: Cross multiply
    85,634,984.12x = 118,177,128.78 × 46,477,108.76
  4. Step 4: Simplify right side
    85,634,984.12x = 5,492,531,267,252,586
  5. Step 5: Solve for x
    x = 5,492,531,267,252,586/85,634,984.12
  6. Step 6: Final answer
    x = 64,138,871.79

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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.