Home / 753,003,123.84-1,038,821,972.90-470,254,689.09

Finding the Fourth Proportional to 753,003,123.84, 1,038,821,972.90 and 470,254,689.09

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Solution

The fourth proportional to 753,003,123.84, 1,038,821,972.90 and 470,254,689.09 is: 648,750,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,003,123.84 : 1,038,821,972.90 = 470,254,689.09 : x
  2. Step 2: Convert to fraction form
    753,003,123.84/1,038,821,972.90 = 470,254,689.09/x
  3. Step 3: Cross multiply
    753,003,123.84x = 1,038,821,972.90 × 470,254,689.09
  4. Step 4: Simplify right side
    753,003,123.84x = 488,510,903,883,598,592
  5. Step 5: Solve for x
    x = 488,510,903,883,598,592/753,003,123.84
  6. Step 6: Final answer
    x = 648,750,169.05

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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.