Home / 129,099,472,438.08-178,157,890,747.86-71,227,849,341.96

Finding the Fourth Proportional to 129,099,472,438.08, 178,157,890,747.86 and 71,227,849,341.96

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Solution

The fourth proportional to 129,099,472,438.08, 178,157,890,747.86 and 71,227,849,341.96 is: 98,294,773,492.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,099,472,438.08 : 178,157,890,747.86 = 71,227,849,341.96 : x
  2. Step 2: Convert to fraction form
    129,099,472,438.08/178,157,890,747.86 = 71,227,849,341.96/x
  3. Step 3: Cross multiply
    129,099,472,438.08x = 178,157,890,747.86 × 71,227,849,341.96
  4. Step 4: Simplify right side
    129,099,472,438.08x = 12,689,803,401,269,941,895,168
  5. Step 5: Solve for x
    x = 12,689,803,401,269,941,895,168/129,099,472,438.08
  6. Step 6: Final answer
    x = 98,294,773,492.25

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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.