Home / 908,011,013.80-1,362,016,520.70-253,063,125.40

Finding the Fourth Proportional to 908,011,013.80, 1,362,016,520.70 and 253,063,125.40

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Solution

The fourth proportional to 908,011,013.80, 1,362,016,520.70 and 253,063,125.40 is: 379,594,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,011,013.80 : 1,362,016,520.70 = 253,063,125.40 : x
  2. Step 2: Convert to fraction form
    908,011,013.80/1,362,016,520.70 = 253,063,125.40/x
  3. Step 3: Cross multiply
    908,011,013.80x = 1,362,016,520.70 × 253,063,125.40
  4. Step 4: Simplify right side
    908,011,013.80x = 344,676,157,574,775,808
  5. Step 5: Solve for x
    x = 344,676,157,574,775,808/908,011,013.80
  6. Step 6: Final answer
    x = 379,594,688.10

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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.