Home / 831,431,961.42-1,246,989,001.86-249,166,206.94

Finding the Fourth Proportional to 831,431,961.42, 1,246,989,001.86 and 249,166,206.94

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Solution

The fourth proportional to 831,431,961.42, 1,246,989,001.86 and 249,166,206.94 is: 373,701,678.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,431,961.42 : 1,246,989,001.86 = 249,166,206.94 : x
  2. Step 2: Convert to fraction form
    831,431,961.42/1,246,989,001.86 = 249,166,206.94/x
  3. Step 3: Cross multiply
    831,431,961.42x = 1,246,989,001.86 × 249,166,206.94
  4. Step 4: Simplify right side
    831,431,961.42x = 310,707,519,688,106,944
  5. Step 5: Solve for x
    x = 310,707,519,688,106,944/831,431,961.42
  6. Step 6: Final answer
    x = 373,701,678.68

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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.