Home / 788,872,856.37-1,088,604,708.09-431,632,901.76

Finding the Fourth Proportional to 788,872,856.37, 1,088,604,708.09 and 431,632,901.76

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Solution

The fourth proportional to 788,872,856.37, 1,088,604,708.09 and 431,632,901.76 is: 595,631,609.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,872,856.37 : 1,088,604,708.09 = 431,632,901.76 : x
  2. Step 2: Convert to fraction form
    788,872,856.37/1,088,604,708.09 = 431,632,901.76/x
  3. Step 3: Cross multiply
    788,872,856.37x = 1,088,604,708.09 × 431,632,901.76
  4. Step 4: Simplify right side
    788,872,856.37x = 469,877,609,022,484,416
  5. Step 5: Solve for x
    x = 469,877,609,022,484,416/788,872,856.37
  6. Step 6: Final answer
    x = 595,631,609.36

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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.