Home / 487,154,274.70-730,731,412.05-123,648,630.70

Finding the Fourth Proportional to 487,154,274.70, 730,731,412.05 and 123,648,630.70

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Solution

The fourth proportional to 487,154,274.70, 730,731,412.05 and 123,648,630.70 is: 185,472,946.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,154,274.70 : 730,731,412.05 = 123,648,630.70 : x
  2. Step 2: Convert to fraction form
    487,154,274.70/730,731,412.05 = 123,648,630.70/x
  3. Step 3: Cross multiply
    487,154,274.70x = 730,731,412.05 × 123,648,630.70
  4. Step 4: Simplify right side
    487,154,274.70x = 90,353,938,509,459,984
  5. Step 5: Solve for x
    x = 90,353,938,509,459,984/487,154,274.70
  6. Step 6: Final answer
    x = 185,472,946.05

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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.