Home / 156,716,871.40-235,075,307.10-85,053,255.40

Finding the Fourth Proportional to 156,716,871.40, 235,075,307.10 and 85,053,255.40

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Solution

The fourth proportional to 156,716,871.40, 235,075,307.10 and 85,053,255.40 is: 127,579,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,716,871.40 : 235,075,307.10 = 85,053,255.40 : x
  2. Step 2: Convert to fraction form
    156,716,871.40/235,075,307.10 = 85,053,255.40/x
  3. Step 3: Cross multiply
    156,716,871.40x = 235,075,307.10 × 85,053,255.40
  4. Step 4: Simplify right side
    156,716,871.40x = 19,993,920,133,009,736
  5. Step 5: Solve for x
    x = 19,993,920,133,009,736/156,716,871.40
  6. Step 6: Final answer
    x = 127,579,883.10

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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.