Home / 65,186,999.40-97,793,621.10-19,128,779.40

Finding the Fourth Proportional to 65,186,999.40, 97,793,621.10 and 19,128,779.40

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Solution

The fourth proportional to 65,186,999.40, 97,793,621.10 and 19,128,779.40 is: 28,697,019.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,186,999.40 : 97,793,621.10 = 19,128,779.40 : x
  2. Step 2: Convert to fraction form
    65,186,999.40/97,793,621.10 = 19,128,779.40/x
  3. Step 3: Cross multiply
    65,186,999.40x = 97,793,621.10 × 19,128,779.40
  4. Step 4: Simplify right side
    65,186,999.40x = 1,870,672,604,749,085
  5. Step 5: Solve for x
    x = 1,870,672,604,749,085/65,186,999.40
  6. Step 6: Final answer
    x = 28,697,019.68

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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.