Home / 157,117,942.40-235,676,913.60-99,675,075.20

Finding the Fourth Proportional to 157,117,942.40, 235,676,913.60 and 99,675,075.20

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Solution

The fourth proportional to 157,117,942.40, 235,676,913.60 and 99,675,075.20 is: 149,512,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,117,942.40 : 235,676,913.60 = 99,675,075.20 : x
  2. Step 2: Convert to fraction form
    157,117,942.40/235,676,913.60 = 99,675,075.20/x
  3. Step 3: Cross multiply
    157,117,942.40x = 235,676,913.60 × 99,675,075.20
  4. Step 4: Simplify right side
    157,117,942.40x = 23,491,114,085,983,904
  5. Step 5: Solve for x
    x = 23,491,114,085,983,904/157,117,942.40
  6. Step 6: Final answer
    x = 149,512,612.80

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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.