Home / 171,663,128.40-257,494,692.60-99,103,717.20

Finding the Fourth Proportional to 171,663,128.40, 257,494,692.60 and 99,103,717.20

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Solution

The fourth proportional to 171,663,128.40, 257,494,692.60 and 99,103,717.20 is: 148,655,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,663,128.40 : 257,494,692.60 = 99,103,717.20 : x
  2. Step 2: Convert to fraction form
    171,663,128.40/257,494,692.60 = 99,103,717.20/x
  3. Step 3: Cross multiply
    171,663,128.40x = 257,494,692.60 × 99,103,717.20
  4. Step 4: Simplify right side
    171,663,128.40x = 25,518,681,195,931,332
  5. Step 5: Solve for x
    x = 25,518,681,195,931,332/171,663,128.40
  6. Step 6: Final answer
    x = 148,655,575.80

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1.5x scale

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.