Home / 1,118,398,870.17-1,678,007,381.18-520,421,916.24

Finding the Fourth Proportional to 1,118,398,870.17, 1,678,007,381.18 and 520,421,916.24

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Solution

The fourth proportional to 1,118,398,870.17, 1,678,007,381.18 and 520,421,916.24 is: 780,823,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,398,870.17 : 1,678,007,381.18 = 520,421,916.24 : x
  2. Step 2: Convert to fraction form
    1,118,398,870.17/1,678,007,381.18 = 520,421,916.24/x
  3. Step 3: Cross multiply
    1,118,398,870.17x = 1,678,007,381.18 × 520,421,916.24
  4. Step 4: Simplify right side
    1,118,398,870.17x = 873,271,816,775,957,632
  5. Step 5: Solve for x
    x = 873,271,816,775,957,632/1,118,398,870.17
  6. Step 6: Final answer
    x = 780,823,228.70

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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.