Home / 632,129,966.79-947,763,984.70-320,636,938

Finding the Fourth Proportional to 632,129,966.79, 947,763,984.70 and 320,636,938

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Solution

The fourth proportional to 632,129,966.79, 947,763,984.70 and 320,636,938 is: 480,736,807.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,129,966.79 : 947,763,984.70 = 320,636,938 : x
  2. Step 2: Convert to fraction form
    632,129,966.79/947,763,984.70 = 320,636,938/x
  3. Step 3: Cross multiply
    632,129,966.79x = 947,763,984.70 × 320,636,938
  4. Step 4: Simplify right side
    632,129,966.79x = 303,888,142,000,886,848
  5. Step 5: Solve for x
    x = 303,888,142,000,886,848/632,129,966.79
  6. Step 6: Final answer
    x = 480,736,807.25

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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.