Home / 389,352,088.32-537,305,838.50-210,735,946.20

Finding the Fourth Proportional to 389,352,088.32, 537,305,838.50 and 210,735,946.20

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Solution

The fourth proportional to 389,352,088.32, 537,305,838.50 and 210,735,946.20 is: 290,815,582.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,352,088.32 : 537,305,838.50 = 210,735,946.20 : x
  2. Step 2: Convert to fraction form
    389,352,088.32/537,305,838.50 = 210,735,946.20/x
  3. Step 3: Cross multiply
    389,352,088.32x = 537,305,838.50 × 210,735,946.20
  4. Step 4: Simplify right side
    389,352,088.32x = 113,229,654,275,081,888
  5. Step 5: Solve for x
    x = 113,229,654,275,081,888/389,352,088.32
  6. Step 6: Final answer
    x = 290,815,582.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.