Home / 156,716,870.40-235,075,305.60-85,053,254.40

Finding the Fourth Proportional to 156,716,870.40, 235,075,305.60 and 85,053,254.40

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Solution

The fourth proportional to 156,716,870.40, 235,075,305.60 and 85,053,254.40 is: 127,579,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,716,870.40 : 235,075,305.60 = 85,053,254.40 : x
  2. Step 2: Convert to fraction form
    156,716,870.40/235,075,305.60 = 85,053,254.40/x
  3. Step 3: Cross multiply
    156,716,870.40x = 235,075,305.60 × 85,053,254.40
  4. Step 4: Simplify right side
    156,716,870.40x = 19,993,919,770,354,544
  5. Step 5: Solve for x
    x = 19,993,919,770,354,544/156,716,870.40
  6. Step 6: Final answer
    x = 127,579,881.60

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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.