Home / 138,698,060.54-191,400,977.84-76,817,070.50

Finding the Fourth Proportional to 138,698,060.54, 191,400,977.84 and 76,817,070.50

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Solution

The fourth proportional to 138,698,060.54, 191,400,977.84 and 76,817,070.50 is: 106,006,258.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,698,060.54 : 191,400,977.84 = 76,817,070.50 : x
  2. Step 2: Convert to fraction form
    138,698,060.54/191,400,977.84 = 76,817,070.50/x
  3. Step 3: Cross multiply
    138,698,060.54x = 191,400,977.84 × 76,817,070.50
  4. Step 4: Simplify right side
    138,698,060.54x = 14,702,862,407,163,130
  5. Step 5: Solve for x
    x = 14,702,862,407,163,130/138,698,060.54
  6. Step 6: Final answer
    x = 106,006,258.13

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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.