Home / 128,158,827.35-176,860,030.91-69,421,492.46

Finding the Fourth Proportional to 128,158,827.35, 176,860,030.91 and 69,421,492.46

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Solution

The fourth proportional to 128,158,827.35, 176,860,030.91 and 69,421,492.46 is: 95,802,119.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,158,827.35 : 176,860,030.91 = 69,421,492.46 : x
  2. Step 2: Convert to fraction form
    128,158,827.35/176,860,030.91 = 69,421,492.46/x
  3. Step 3: Cross multiply
    128,158,827.35x = 176,860,030.91 × 69,421,492.46
  4. Step 4: Simplify right side
    128,158,827.35x = 12,277,887,302,388,976
  5. Step 5: Solve for x
    x = 12,277,887,302,388,976/128,158,827.35
  6. Step 6: Final answer
    x = 95,802,119.58

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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.