Home / 66,445,543.20-99,668,314.80-40,803,405.60

Finding the Fourth Proportional to 66,445,543.20, 99,668,314.80 and 40,803,405.60

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Solution

The fourth proportional to 66,445,543.20, 99,668,314.80 and 40,803,405.60 is: 61,205,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,445,543.20 : 99,668,314.80 = 40,803,405.60 : x
  2. Step 2: Convert to fraction form
    66,445,543.20/99,668,314.80 = 40,803,405.60/x
  3. Step 3: Cross multiply
    66,445,543.20x = 99,668,314.80 × 40,803,405.60
  4. Step 4: Simplify right side
    66,445,543.20x = 4,066,806,674,252,883
  5. Step 5: Solve for x
    x = 4,066,806,674,252,883/66,445,543.20
  6. Step 6: Final answer
    x = 61,205,108.40

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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.