Home / 991,153,014.10-1,485,390,249.73-377,402,432.02

Finding the Fourth Proportional to 991,153,014.10, 1,485,390,249.73 and 377,402,432.02

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Solution

The fourth proportional to 991,153,014.10, 1,485,390,249.73 and 377,402,432.02 is: 565,593,692.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,153,014.10 : 1,485,390,249.73 = 377,402,432.02 : x
  2. Step 2: Convert to fraction form
    991,153,014.10/1,485,390,249.73 = 377,402,432.02/x
  3. Step 3: Cross multiply
    991,153,014.10x = 1,485,390,249.73 × 377,402,432.02
  4. Step 4: Simplify right side
    991,153,014.10x = 560,589,892,746,897,152
  5. Step 5: Solve for x
    x = 560,589,892,746,897,152/991,153,014.10
  6. Step 6: Final answer
    x = 565,593,692.17

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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.