Home / 479,011,567.28-660,911,011.08-280,666,501.16

Finding the Fourth Proportional to 479,011,567.28, 660,911,011.08 and 280,666,501.16

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Solution

The fourth proportional to 479,011,567.28, 660,911,011.08 and 280,666,501.16 is: 387,246,558.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,011,567.28 : 660,911,011.08 = 280,666,501.16 : x
  2. Step 2: Convert to fraction form
    479,011,567.28/660,911,011.08 = 280,666,501.16/x
  3. Step 3: Cross multiply
    479,011,567.28x = 660,911,011.08 × 280,666,501.16
  4. Step 4: Simplify right side
    479,011,567.28x = 185,495,581,057,941,632
  5. Step 5: Solve for x
    x = 185,495,581,057,941,632/479,011,567.28
  6. Step 6: Final answer
    x = 387,246,558.81

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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.