Home / 85,700,442.88-118,302,802.08-57,860,866.08

Finding the Fourth Proportional to 85,700,442.88, 118,302,802.08 and 57,860,866.08

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Solution

The fourth proportional to 85,700,442.88, 118,302,802.08 and 57,860,866.08 is: 79,872,429.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,700,442.88 : 118,302,802.08 = 57,860,866.08 : x
  2. Step 2: Convert to fraction form
    85,700,442.88/118,302,802.08 = 57,860,866.08/x
  3. Step 3: Cross multiply
    85,700,442.88x = 118,302,802.08 × 57,860,866.08
  4. Step 4: Simplify right side
    85,700,442.88x = 6,845,102,588,039,625
  5. Step 5: Solve for x
    x = 6,845,102,588,039,625/85,700,442.88
  6. Step 6: Final answer
    x = 79,872,429.57

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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.