Home / 105,014,429.40-157,521,644.10-90,858,653.40

Finding the Fourth Proportional to 105,014,429.40, 157,521,644.10 and 90,858,653.40

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Solution

The fourth proportional to 105,014,429.40, 157,521,644.10 and 90,858,653.40 is: 136,287,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,014,429.40 : 157,521,644.10 = 90,858,653.40 : x
  2. Step 2: Convert to fraction form
    105,014,429.40/157,521,644.10 = 90,858,653.40/x
  3. Step 3: Cross multiply
    105,014,429.40x = 157,521,644.10 × 90,858,653.40
  4. Step 4: Simplify right side
    105,014,429.40x = 14,312,204,464,280,056
  5. Step 5: Solve for x
    x = 14,312,204,464,280,056/105,014,429.40
  6. Step 6: Final answer
    x = 136,287,980.10

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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.