Home / 216,779,681.47-299,155,202.71-117,660,423.42

Finding the Fourth Proportional to 216,779,681.47, 299,155,202.71 and 117,660,423.42

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Solution

The fourth proportional to 216,779,681.47, 299,155,202.71 and 117,660,423.42 is: 162,370,973.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,779,681.47 : 299,155,202.71 = 117,660,423.42 : x
  2. Step 2: Convert to fraction form
    216,779,681.47/299,155,202.71 = 117,660,423.42/x
  3. Step 3: Cross multiply
    216,779,681.47x = 299,155,202.71 × 117,660,423.42
  4. Step 4: Simplify right side
    216,779,681.47x = 35,198,727,819,154,528
  5. Step 5: Solve for x
    x = 35,198,727,819,154,528/216,779,681.47
  6. Step 6: Final answer
    x = 162,370,973.06

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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.