Home / 65,152,083.20-97,728,124.80-42,160,006.40

Finding the Fourth Proportional to 65,152,083.20, 97,728,124.80 and 42,160,006.40

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Solution

The fourth proportional to 65,152,083.20, 97,728,124.80 and 42,160,006.40 is: 63,240,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,152,083.20 : 97,728,124.80 = 42,160,006.40 : x
  2. Step 2: Convert to fraction form
    65,152,083.20/97,728,124.80 = 42,160,006.40/x
  3. Step 3: Cross multiply
    65,152,083.20x = 97,728,124.80 × 42,160,006.40
  4. Step 4: Simplify right side
    65,152,083.20x = 4,120,218,367,027,998.50
  5. Step 5: Solve for x
    x = 4,120,218,367,027,998.50/65,152,083.20
  6. Step 6: Final answer
    x = 63,240,009.60

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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.