Home / 210,528,712.40-315,793,068.60-103,033,288.40

Finding the Fourth Proportional to 210,528,712.40, 315,793,068.60 and 103,033,288.40

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Solution

The fourth proportional to 210,528,712.40, 315,793,068.60 and 103,033,288.40 is: 154,549,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,528,712.40 : 315,793,068.60 = 103,033,288.40 : x
  2. Step 2: Convert to fraction form
    210,528,712.40/315,793,068.60 = 103,033,288.40/x
  3. Step 3: Cross multiply
    210,528,712.40x = 315,793,068.60 × 103,033,288.40
  4. Step 4: Simplify right side
    210,528,712.40x = 32,537,198,311,784,788
  5. Step 5: Solve for x
    x = 32,537,198,311,784,788/210,528,712.40
  6. Step 6: Final answer
    x = 154,549,932.60

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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.