Home / 776,767,866.13-1,071,955,457.13-424,366,681.78

Finding the Fourth Proportional to 776,767,866.13, 1,071,955,457.13 and 424,366,681.78

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Solution

The fourth proportional to 776,767,866.13, 1,071,955,457.13 and 424,366,681.78 is: 585,634,653.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,767,866.13 : 1,071,955,457.13 = 424,366,681.78 : x
  2. Step 2: Convert to fraction form
    776,767,866.13/1,071,955,457.13 = 424,366,681.78/x
  3. Step 3: Cross multiply
    776,767,866.13x = 1,071,955,457.13 × 424,366,681.78
  4. Step 4: Simplify right side
    776,767,866.13x = 454,902,180,358,221,120
  5. Step 5: Solve for x
    x = 454,902,180,358,221,120/776,767,866.13
  6. Step 6: Final answer
    x = 585,634,653.79

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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.