Home / 103,430,641.20-155,133,520.20-42,840,049.20

Finding the Fourth Proportional to 103,430,641.20, 155,133,520.20 and 42,840,049.20

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Solution

The fourth proportional to 103,430,641.20, 155,133,520.20 and 42,840,049.20 is: 64,254,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,430,641.20 : 155,133,520.20 = 42,840,049.20 : x
  2. Step 2: Convert to fraction form
    103,430,641.20/155,133,520.20 = 42,840,049.20/x
  3. Step 3: Cross multiply
    103,430,641.20x = 155,133,520.20 × 42,840,049.20
  4. Step 4: Simplify right side
    103,430,641.20x = 6,645,927,637,937,194
  5. Step 5: Solve for x
    x = 6,645,927,637,937,194/103,430,641.20
  6. Step 6: Final answer
    x = 64,254,920.60

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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.