Home / 917,871,980.45-1,266,602,730.04-516,047,668.88

Finding the Fourth Proportional to 917,871,980.45, 1,266,602,730.04 and 516,047,668.88

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Solution

The fourth proportional to 917,871,980.45, 1,266,602,730.04 and 516,047,668.88 is: 712,111,710.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,871,980.45 : 1,266,602,730.04 = 516,047,668.88 : x
  2. Step 2: Convert to fraction form
    917,871,980.45/1,266,602,730.04 = 516,047,668.88/x
  3. Step 3: Cross multiply
    917,871,980.45x = 1,266,602,730.04 × 516,047,668.88
  4. Step 4: Simplify right side
    917,871,980.45x = 653,627,386,228,472,192
  5. Step 5: Solve for x
    x = 653,627,386,228,472,192/917,871,980.45
  6. Step 6: Final answer
    x = 712,111,710.73

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1.5x scale

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.