Home / 103,430,702.20-155,133,611.70-42,840,110.20

Finding the Fourth Proportional to 103,430,702.20, 155,133,611.70 and 42,840,110.20

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Solution

The fourth proportional to 103,430,702.20, 155,133,611.70 and 42,840,110.20 is: 64,255,012.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,430,702.20 : 155,133,611.70 = 42,840,110.20 : x
  2. Step 2: Convert to fraction form
    103,430,702.20/155,133,611.70 = 42,840,110.20/x
  3. Step 3: Cross multiply
    103,430,702.20x = 155,133,611.70 × 42,840,110.20
  4. Step 4: Simplify right side
    103,430,702.20x = 6,645,941,020,952,009
  5. Step 5: Solve for x
    x = 6,645,941,020,952,009/103,430,702.20
  6. Step 6: Final answer
    x = 64,255,012.10

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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.