Home / 98,153,783.20-135,444,256.12-56,903,332.76

Finding the Fourth Proportional to 98,153,783.20, 135,444,256.12 and 56,903,332.76

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Solution

The fourth proportional to 98,153,783.20, 135,444,256.12 and 56,903,332.76 is: 78,521,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,153,783.20 : 135,444,256.12 = 56,903,332.76 : x
  2. Step 2: Convert to fraction form
    98,153,783.20/135,444,256.12 = 56,903,332.76/x
  3. Step 3: Cross multiply
    98,153,783.20x = 135,444,256.12 × 56,903,332.76
  4. Step 4: Simplify right side
    98,153,783.20x = 7,707,229,576,427,026
  5. Step 5: Solve for x
    x = 7,707,229,576,427,026/98,153,783.20
  6. Step 6: Final answer
    x = 78,521,981.78

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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.