Home / 289,893,953.40-434,840,930.10-98,417,729.40

Finding the Fourth Proportional to 289,893,953.40, 434,840,930.10 and 98,417,729.40

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Solution

The fourth proportional to 289,893,953.40, 434,840,930.10 and 98,417,729.40 is: 147,626,594.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,893,953.40 : 434,840,930.10 = 98,417,729.40 : x
  2. Step 2: Convert to fraction form
    289,893,953.40/434,840,930.10 = 98,417,729.40/x
  3. Step 3: Cross multiply
    289,893,953.40x = 434,840,930.10 × 98,417,729.40
  4. Step 4: Simplify right side
    289,893,953.40x = 42,796,056,990,626,120
  5. Step 5: Solve for x
    x = 42,796,056,990,626,120/289,893,953.40
  6. Step 6: Final answer
    x = 147,626,594.10

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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.