Home / 933,137,800.40-1,399,706,700.60-358,709,128.40

Finding the Fourth Proportional to 933,137,800.40, 1,399,706,700.60 and 358,709,128.40

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Solution

The fourth proportional to 933,137,800.40, 1,399,706,700.60 and 358,709,128.40 is: 538,063,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,137,800.40 : 1,399,706,700.60 = 358,709,128.40 : x
  2. Step 2: Convert to fraction form
    933,137,800.40/1,399,706,700.60 = 358,709,128.40/x
  3. Step 3: Cross multiply
    933,137,800.40x = 1,399,706,700.60 × 358,709,128.40
  4. Step 4: Simplify right side
    933,137,800.40x = 502,087,570,587,865,664
  5. Step 5: Solve for x
    x = 502,087,570,587,865,664/933,137,800.40
  6. Step 6: Final answer
    x = 538,063,692.60

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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.