Home / 89,165,430.30-133,748,145.45-79,812,068.70

Finding the Fourth Proportional to 89,165,430.30, 133,748,145.45 and 79,812,068.70

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Solution

The fourth proportional to 89,165,430.30, 133,748,145.45 and 79,812,068.70 is: 119,718,103.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,165,430.30 : 133,748,145.45 = 79,812,068.70 : x
  2. Step 2: Convert to fraction form
    89,165,430.30/133,748,145.45 = 79,812,068.70/x
  3. Step 3: Cross multiply
    89,165,430.30x = 133,748,145.45 × 79,812,068.70
  4. Step 4: Simplify right side
    89,165,430.30x = 10,674,716,173,152,994
  5. Step 5: Solve for x
    x = 10,674,716,173,152,994/89,165,430.30
  6. Step 6: Final answer
    x = 119,718,103.05

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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.