Home / 910,289,347.36-1,256,199,300.75-492,601,632.50

Finding the Fourth Proportional to 910,289,347.36, 1,256,199,300.75 and 492,601,632.50

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Solution

The fourth proportional to 910,289,347.36, 1,256,199,300.75 and 492,601,632.50 is: 679,790,253.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,289,347.36 : 1,256,199,300.75 = 492,601,632.50 : x
  2. Step 2: Convert to fraction form
    910,289,347.36/1,256,199,300.75 = 492,601,632.50/x
  3. Step 3: Cross multiply
    910,289,347.36x = 1,256,199,300.75 × 492,601,632.50
  4. Step 4: Simplify right side
    910,289,347.36x = 618,805,826,294,808,448
  5. Step 5: Solve for x
    x = 618,805,826,294,808,448/910,289,347.36
  6. Step 6: Final answer
    x = 679,790,253.60

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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.