Home / 90,717,711.40-136,076,567.10-56,658,248.20

Finding the Fourth Proportional to 90,717,711.40, 136,076,567.10 and 56,658,248.20

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Solution

The fourth proportional to 90,717,711.40, 136,076,567.10 and 56,658,248.20 is: 84,987,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,717,711.40 : 136,076,567.10 = 56,658,248.20 : x
  2. Step 2: Convert to fraction form
    90,717,711.40/136,076,567.10 = 56,658,248.20/x
  3. Step 3: Cross multiply
    90,717,711.40x = 136,076,567.10 × 56,658,248.20
  4. Step 4: Simplify right side
    90,717,711.40x = 7,709,859,912,955,754
  5. Step 5: Solve for x
    x = 7,709,859,912,955,754/90,717,711.40
  6. Step 6: Final answer
    x = 84,987,372.30

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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.