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Finding the Fourth Proportional to 1,978,506,001.80, 2,967,759,002.70 and 1,398,030,712.20

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Solution

The fourth proportional to 1,978,506,001.80, 2,967,759,002.70 and 1,398,030,712.20 is: 2,097,046,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,506,001.80 : 2,967,759,002.70 = 1,398,030,712.20 : x
  2. Step 2: Convert to fraction form
    1,978,506,001.80/2,967,759,002.70 = 1,398,030,712.20/x
  3. Step 3: Cross multiply
    1,978,506,001.80x = 2,967,759,002.70 × 1,398,030,712.20
  4. Step 4: Simplify right side
    1,978,506,001.80x = 4,149,018,232,182,642,688
  5. Step 5: Solve for x
    x = 4,149,018,232,182,642,688/1,978,506,001.80
  6. Step 6: Final answer
    x = 2,097,046,068.30

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