Home / 631,314,003.68-947,021,492.50-216,623,948.37

Finding the Fourth Proportional to 631,314,003.68, 947,021,492.50 and 216,623,948.37

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Solution

The fourth proportional to 631,314,003.68, 947,021,492.50 and 216,623,948.37 is: 324,953,246.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,314,003.68 : 947,021,492.50 = 216,623,948.37 : x
  2. Step 2: Convert to fraction form
    631,314,003.68/947,021,492.50 = 216,623,948.37/x
  3. Step 3: Cross multiply
    631,314,003.68x = 947,021,492.50 × 216,623,948.37
  4. Step 4: Simplify right side
    631,314,003.68x = 205,147,534,896,600,352
  5. Step 5: Solve for x
    x = 205,147,534,896,600,352/631,314,003.68
  6. Step 6: Final answer
    x = 324,953,246.25

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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.