Home / 278,521,705.35-384,368,598.93-153,071,618.70

Finding the Fourth Proportional to 278,521,705.35, 384,368,598.93 and 153,071,618.70

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Solution

The fourth proportional to 278,521,705.35, 384,368,598.93 and 153,071,618.70 is: 211,243,585.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,521,705.35 : 384,368,598.93 = 153,071,618.70 : x
  2. Step 2: Convert to fraction form
    278,521,705.35/384,368,598.93 = 153,071,618.70/x
  3. Step 3: Cross multiply
    278,521,705.35x = 384,368,598.93 × 153,071,618.70
  4. Step 4: Simplify right side
    278,521,705.35x = 58,835,923,615,666,184
  5. Step 5: Solve for x
    x = 58,835,923,615,666,184/278,521,705.35
  6. Step 6: Final answer
    x = 211,243,585.28

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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.