Home / 128,042,905.64-176,699,218.40-70,096,153.64

Finding the Fourth Proportional to 128,042,905.64, 176,699,218.40 and 70,096,153.64

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Solution

The fourth proportional to 128,042,905.64, 176,699,218.40 and 70,096,153.64 is: 96,732,696.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,042,905.64 : 176,699,218.40 = 70,096,153.64 : x
  2. Step 2: Convert to fraction form
    128,042,905.64/176,699,218.40 = 70,096,153.64/x
  3. Step 3: Cross multiply
    128,042,905.64x = 176,699,218.40 × 70,096,153.64
  4. Step 4: Simplify right side
    128,042,905.64x = 12,385,935,561,034,316
  5. Step 5: Solve for x
    x = 12,385,935,561,034,316/128,042,905.64
  6. Step 6: Final answer
    x = 96,732,696.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.