Home / 2,154,191,905.28-2,972,656,712-1,249,877,784.32

Finding the Fourth Proportional to 2,154,191,905.28, 2,972,656,712 and 1,249,877,784.32

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Solution

The fourth proportional to 2,154,191,905.28, 2,972,656,712 and 1,249,877,784.32 is: 1,724,757,007.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,191,905.28 : 2,972,656,712 = 1,249,877,784.32 : x
  2. Step 2: Convert to fraction form
    2,154,191,905.28/2,972,656,712 = 1,249,877,784.32/x
  3. Step 3: Cross multiply
    2,154,191,905.28x = 2,972,656,712 × 1,249,877,784.32
  4. Step 4: Simplify right side
    2,154,191,905.28x = 3,715,457,584,738,535,936
  5. Step 5: Solve for x
    x = 3,715,457,584,738,535,936/2,154,191,905.28
  6. Step 6: Final answer
    x = 1,724,757,007.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.