Home / 125,893,352-188,831,360.18-77,378,693.60

Finding the Fourth Proportional to 125,893,352, 188,831,360.18 and 77,378,693.60

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Solution

The fourth proportional to 125,893,352, 188,831,360.18 and 77,378,693.60 is: 116,062,712.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,893,352 : 188,831,360.18 = 77,378,693.60 : x
  2. Step 2: Convert to fraction form
    125,893,352/188,831,360.18 = 77,378,693.60/x
  3. Step 3: Cross multiply
    125,893,352x = 188,831,360.18 × 77,378,693.60
  4. Step 4: Simplify right side
    125,893,352x = 14,611,523,961,439,460
  5. Step 5: Solve for x
    x = 14,611,523,961,439,460/125,893,352
  6. Step 6: Final answer
    x = 116,062,712.84

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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.