Home / 163,838,858.40-245,592,950.40-81,831,607.20

Finding the Fourth Proportional to 163,838,858.40, 245,592,950.40 and 81,831,607.20

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Solution

The fourth proportional to 163,838,858.40, 245,592,950.40 and 81,831,607.20 is: 122,664,830.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,838,858.40 : 245,592,950.40 = 81,831,607.20 : x
  2. Step 2: Convert to fraction form
    163,838,858.40/245,592,950.40 = 81,831,607.20/x
  3. Step 3: Cross multiply
    163,838,858.40x = 245,592,950.40 × 81,831,607.20
  4. Step 4: Simplify right side
    163,838,858.40x = 20,097,265,848,221,884
  5. Step 5: Solve for x
    x = 20,097,265,848,221,884/163,838,858.40
  6. Step 6: Final answer
    x = 122,664,830.83

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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.