Home / 290,350,457.36-435,610,715.88-85,883,977.52

Finding the Fourth Proportional to 290,350,457.36, 435,610,715.88 and 85,883,977.52

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Solution

The fourth proportional to 290,350,457.36, 435,610,715.88 and 85,883,977.52 is: 128,851,117.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,350,457.36 : 435,610,715.88 = 85,883,977.52 : x
  2. Step 2: Convert to fraction form
    290,350,457.36/435,610,715.88 = 85,883,977.52/x
  3. Step 3: Cross multiply
    290,350,457.36x = 435,610,715.88 × 85,883,977.52
  4. Step 4: Simplify right side
    290,350,457.36x = 37,411,980,930,109,024
  5. Step 5: Solve for x
    x = 37,411,980,930,109,024/290,350,457.36
  6. Step 6: Final answer
    x = 128,851,117.61

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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.