Home / 1,390,585,688.18-2,085,879,281.38-517,073,555.10

Finding the Fourth Proportional to 1,390,585,688.18, 2,085,879,281.38 and 517,073,555.10

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Solution

The fourth proportional to 1,390,585,688.18, 2,085,879,281.38 and 517,073,555.10 is: 775,610,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,585,688.18 : 2,085,879,281.38 = 517,073,555.10 : x
  2. Step 2: Convert to fraction form
    1,390,585,688.18/2,085,879,281.38 = 517,073,555.10/x
  3. Step 3: Cross multiply
    1,390,585,688.18x = 2,085,879,281.38 × 517,073,555.10
  4. Step 4: Simplify right side
    1,390,585,688.18x = 1,078,553,015,532,589,952
  5. Step 5: Solve for x
    x = 1,078,553,015,532,589,952/1,390,585,688.18
  6. Step 6: Final answer
    x = 775,610,611.20

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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.