Home / 620,688,729.15-931,033,093.73-509,723,848.35

Finding the Fourth Proportional to 620,688,729.15, 931,033,093.73 and 509,723,848.35

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Solution

The fourth proportional to 620,688,729.15, 931,033,093.73 and 509,723,848.35 is: 764,585,772.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,688,729.15 : 931,033,093.73 = 509,723,848.35 : x
  2. Step 2: Convert to fraction form
    620,688,729.15/931,033,093.73 = 509,723,848.35/x
  3. Step 3: Cross multiply
    620,688,729.15x = 931,033,093.73 × 509,723,848.35
  4. Step 4: Simplify right side
    620,688,729.15x = 474,569,771,474,713,280
  5. Step 5: Solve for x
    x = 474,569,771,474,713,280/620,688,729.15
  6. Step 6: Final answer
    x = 764,585,772.53

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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.