Home / 210,788,291.76-316,253,061.33-72,709,208.67

Finding the Fourth Proportional to 210,788,291.76, 316,253,061.33 and 72,709,208.67

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Solution

The fourth proportional to 210,788,291.76, 316,253,061.33 and 72,709,208.67 is: 109,088,173.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,788,291.76 : 316,253,061.33 = 72,709,208.67 : x
  2. Step 2: Convert to fraction form
    210,788,291.76/316,253,061.33 = 72,709,208.67/x
  3. Step 3: Cross multiply
    210,788,291.76x = 316,253,061.33 × 72,709,208.67
  4. Step 4: Simplify right side
    210,788,291.76x = 22,994,509,828,769,276
  5. Step 5: Solve for x
    x = 22,994,509,828,769,276/210,788,291.76
  6. Step 6: Final answer
    x = 109,088,173.91

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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.