Home / 155,423,089.80-232,827,579.90-78,801,107.40

Finding the Fourth Proportional to 155,423,089.80, 232,827,579.90 and 78,801,107.40

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Solution

The fourth proportional to 155,423,089.80, 232,827,579.90 and 78,801,107.40 is: 118,045,981.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,423,089.80 : 232,827,579.90 = 78,801,107.40 : x
  2. Step 2: Convert to fraction form
    155,423,089.80/232,827,579.90 = 78,801,107.40/x
  3. Step 3: Cross multiply
    155,423,089.80x = 232,827,579.90 × 78,801,107.40
  4. Step 4: Simplify right side
    155,423,089.80x = 18,347,071,129,381,984
  5. Step 5: Solve for x
    x = 18,347,071,129,381,984/155,423,089.80
  6. Step 6: Final answer
    x = 118,045,981.15

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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.