Home / 288,807,299.72-433,168,337.10-84,280,459.40

Finding the Fourth Proportional to 288,807,299.72, 433,168,337.10 and 84,280,459.40

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Solution

The fourth proportional to 288,807,299.72, 433,168,337.10 and 84,280,459.40 is: 126,408,253.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,807,299.72 : 433,168,337.10 = 84,280,459.40 : x
  2. Step 2: Convert to fraction form
    288,807,299.72/433,168,337.10 = 84,280,459.40/x
  3. Step 3: Cross multiply
    288,807,299.72x = 433,168,337.10 × 84,280,459.40
  4. Step 4: Simplify right side
    288,807,299.72x = 36,507,626,448,322,072
  5. Step 5: Solve for x
    x = 36,507,626,448,322,072/288,807,299.72
  6. Step 6: Final answer
    x = 126,408,253.82

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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.