Home / 977,416,663.60-1,466,160,424.80-287,393,669.20

Finding the Fourth Proportional to 977,416,663.60, 1,466,160,424.80 and 287,393,669.20

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Solution

The fourth proportional to 977,416,663.60, 1,466,160,424.80 and 287,393,669.20 is: 431,100,921.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,416,663.60 : 1,466,160,424.80 = 287,393,669.20 : x
  2. Step 2: Convert to fraction form
    977,416,663.60/1,466,160,424.80 = 287,393,669.20/x
  3. Step 3: Cross multiply
    977,416,663.60x = 1,466,160,424.80 × 287,393,669.20
  4. Step 4: Simplify right side
    977,416,663.60x = 421,365,224,119,102,656
  5. Step 5: Solve for x
    x = 421,365,224,119,102,656/977,416,663.60
  6. Step 6: Final answer
    x = 431,100,921.25

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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.