Home / 129,037,835.52-178,071,676-70,300,317.76

Finding the Fourth Proportional to 129,037,835.52, 178,071,676 and 70,300,317.76

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Solution

The fourth proportional to 129,037,835.52, 178,071,676 and 70,300,317.76 is: 97,014,145.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,037,835.52 : 178,071,676 = 70,300,317.76 : x
  2. Step 2: Convert to fraction form
    129,037,835.52/178,071,676 = 70,300,317.76/x
  3. Step 3: Cross multiply
    129,037,835.52x = 178,071,676 × 70,300,317.76
  4. Step 4: Simplify right side
    129,037,835.52x = 12,518,495,406,855,766
  5. Step 5: Solve for x
    x = 12,518,495,406,855,766/129,037,835.52
  6. Step 6: Final answer
    x = 97,014,145.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.