Home / 86,939,795.80-130,409,693.70-61,430,627.80

Finding the Fourth Proportional to 86,939,795.80, 130,409,693.70 and 61,430,627.80

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Solution

The fourth proportional to 86,939,795.80, 130,409,693.70 and 61,430,627.80 is: 92,145,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,939,795.80 : 130,409,693.70 = 61,430,627.80 : x
  2. Step 2: Convert to fraction form
    86,939,795.80/130,409,693.70 = 61,430,627.80/x
  3. Step 3: Cross multiply
    86,939,795.80x = 130,409,693.70 × 61,430,627.80
  4. Step 4: Simplify right side
    86,939,795.80x = 8,011,149,355,196,705
  5. Step 5: Solve for x
    x = 8,011,149,355,196,705/86,939,795.80
  6. Step 6: Final answer
    x = 92,145,941.70

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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.