Home / 403,039,240,547.78-604,643,767,526.35-130,742,227,860.30

Finding the Fourth Proportional to 403,039,240,547.78, 604,643,767,526.35 and 130,742,227,860.30

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Solution

The fourth proportional to 403,039,240,547.78, 604,643,767,526.35 and 130,742,227,860.30 is: 196,140,884,745.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,039,240,547.78 : 604,643,767,526.35 = 130,742,227,860.30 : x
  2. Step 2: Convert to fraction form
    403,039,240,547.78/604,643,767,526.35 = 130,742,227,860.30/x
  3. Step 3: Cross multiply
    403,039,240,547.78x = 604,643,767,526.35 × 130,742,227,860.30
  4. Step 4: Simplify right side
    403,039,240,547.78x = 79,052,473,228,240,309,190,656
  5. Step 5: Solve for x
    x = 79,052,473,228,240,309,190,656/403,039,240,547.78
  6. Step 6: Final answer
    x = 196,140,884,745.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.