Home / 1,128,535,720.60-1,692,132,973.98-429,079,056.82

Finding the Fourth Proportional to 1,128,535,720.60, 1,692,132,973.98 and 429,079,056.82

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Solution

The fourth proportional to 1,128,535,720.60, 1,692,132,973.98 and 429,079,056.82 is: 643,363,614.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,535,720.60 : 1,692,132,973.98 = 429,079,056.82 : x
  2. Step 2: Convert to fraction form
    1,128,535,720.60/1,692,132,973.98 = 429,079,056.82/x
  3. Step 3: Cross multiply
    1,128,535,720.60x = 1,692,132,973.98 × 429,079,056.82
  4. Step 4: Simplify right side
    1,128,535,720.60x = 726,058,820,489,360,000
  5. Step 5: Solve for x
    x = 726,058,820,489,360,000/1,128,535,720.60
  6. Step 6: Final answer
    x = 643,363,614.67

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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.