Home / 99,756,451.80-149,336,079.30-89,006,909.40

Finding the Fourth Proportional to 99,756,451.80, 149,336,079.30 and 89,006,909.40

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Solution

The fourth proportional to 99,756,451.80, 149,336,079.30 and 89,006,909.40 is: 133,243,942.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,756,451.80 : 149,336,079.30 = 89,006,909.40 : x
  2. Step 2: Convert to fraction form
    99,756,451.80/149,336,079.30 = 89,006,909.40/x
  3. Step 3: Cross multiply
    99,756,451.80x = 149,336,079.30 × 89,006,909.40
  4. Step 4: Simplify right side
    99,756,451.80x = 13,291,942,880,406,318
  5. Step 5: Solve for x
    x = 13,291,942,880,406,318/99,756,451.80
  6. Step 6: Final answer
    x = 133,243,942.03

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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.