Home / 991,153,013.10-1,485,390,248.24-377,402,431.02

Finding the Fourth Proportional to 991,153,013.10, 1,485,390,248.24 and 377,402,431.02

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Solution

The fourth proportional to 991,153,013.10, 1,485,390,248.24 and 377,402,431.02 is: 565,593,690.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,153,013.10 : 1,485,390,248.24 = 377,402,431.02 : x
  2. Step 2: Convert to fraction form
    991,153,013.10/1,485,390,248.24 = 377,402,431.02/x
  3. Step 3: Cross multiply
    991,153,013.10x = 1,485,390,248.24 × 377,402,431.02
  4. Step 4: Simplify right side
    991,153,013.10x = 560,589,890,697,290,176
  5. Step 5: Solve for x
    x = 560,589,890,697,290,176/991,153,013.10
  6. Step 6: Final answer
    x = 565,593,690.67

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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.