Home / 90,989,437.20-136,484,155.80-56,552,060.40

Finding the Fourth Proportional to 90,989,437.20, 136,484,155.80 and 56,552,060.40

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Solution

The fourth proportional to 90,989,437.20, 136,484,155.80 and 56,552,060.40 is: 84,828,090.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,989,437.20 : 136,484,155.80 = 56,552,060.40 : x
  2. Step 2: Convert to fraction form
    90,989,437.20/136,484,155.80 = 56,552,060.40/x
  3. Step 3: Cross multiply
    90,989,437.20x = 136,484,155.80 × 56,552,060.40
  4. Step 4: Simplify right side
    90,989,437.20x = 7,718,460,222,444,611
  5. Step 5: Solve for x
    x = 7,718,460,222,444,611/90,989,437.20
  6. Step 6: Final answer
    x = 84,828,090.60

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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.