Home / 788,143,895.81-1,087,661,276.06-435,742,586.97

Finding the Fourth Proportional to 788,143,895.81, 1,087,661,276.06 and 435,742,586.97

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Solution

The fourth proportional to 788,143,895.81, 1,087,661,276.06 and 435,742,586.97 is: 601,337,320.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,143,895.81 : 1,087,661,276.06 = 435,742,586.97 : x
  2. Step 2: Convert to fraction form
    788,143,895.81/1,087,661,276.06 = 435,742,586.97/x
  3. Step 3: Cross multiply
    788,143,895.81x = 1,087,661,276.06 × 435,742,586.97
  4. Step 4: Simplify right side
    788,143,895.81x = 473,940,338,175,297,088
  5. Step 5: Solve for x
    x = 473,940,338,175,297,088/788,143,895.81
  6. Step 6: Final answer
    x = 601,337,320.12

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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.