Home / 890,430,870.60-1,335,020,462.64-392,204,931.48

Finding the Fourth Proportional to 890,430,870.60, 1,335,020,462.64 and 392,204,931.48

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Solution

The fourth proportional to 890,430,870.60, 1,335,020,462.64 and 392,204,931.48 is: 588,031,734.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,430,870.60 : 1,335,020,462.64 = 392,204,931.48 : x
  2. Step 2: Convert to fraction form
    890,430,870.60/1,335,020,462.64 = 392,204,931.48/x
  3. Step 3: Cross multiply
    890,430,870.60x = 1,335,020,462.64 × 392,204,931.48
  4. Step 4: Simplify right side
    890,430,870.60x = 523,601,609,074,119,168
  5. Step 5: Solve for x
    x = 523,601,609,074,119,168/890,430,870.60
  6. Step 6: Final answer
    x = 588,031,734.26

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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.