Home / 647,849,015,668.20-893,692,690,327.76-400,572,249,798.48

Finding the Fourth Proportional to 647,849,015,668.20, 893,692,690,327.76 and 400,572,249,798.48

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Solution

The fourth proportional to 647,849,015,668.20, 893,692,690,327.76 and 400,572,249,798.48 is: 552,580,127,367.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,849,015,668.20 : 893,692,690,327.76 = 400,572,249,798.48 : x
  2. Step 2: Convert to fraction form
    647,849,015,668.20/893,692,690,327.76 = 400,572,249,798.48/x
  3. Step 3: Cross multiply
    647,849,015,668.20x = 893,692,690,327.76 × 400,572,249,798.48
  4. Step 4: Simplify right side
    647,849,015,668.20x = 357,988,491,593,047,074,668,544
  5. Step 5: Solve for x
    x = 357,988,491,593,047,074,668,544/647,849,015,668.20
  6. Step 6: Final answer
    x = 552,580,127,367.81

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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.