Home / 1,313,709,869.60-1,812,924,422.64-710,880,495.76

Finding the Fourth Proportional to 1,313,709,869.60, 1,812,924,422.64 and 710,880,495.76

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Solution

The fourth proportional to 1,313,709,869.60, 1,812,924,422.64 and 710,880,495.76 is: 981,017,682.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,709,869.60 : 1,812,924,422.64 = 710,880,495.76 : x
  2. Step 2: Convert to fraction form
    1,313,709,869.60/1,812,924,422.64 = 710,880,495.76/x
  3. Step 3: Cross multiply
    1,313,709,869.60x = 1,812,924,422.64 × 710,880,495.76
  4. Step 4: Simplify right side
    1,313,709,869.60x = 1,288,772,612,341,734,912
  5. Step 5: Solve for x
    x = 1,288,772,612,341,734,912/1,313,709,869.60
  6. Step 6: Final answer
    x = 981,017,682.95

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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.