Home / 123,130,005.18-169,878,148.47-70,917,995.58

Finding the Fourth Proportional to 123,130,005.18, 169,878,148.47 and 70,917,995.58

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Solution

The fourth proportional to 123,130,005.18, 169,878,148.47 and 70,917,995.58 is: 97,843,070.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,130,005.18 : 169,878,148.47 = 70,917,995.58 : x
  2. Step 2: Convert to fraction form
    123,130,005.18/169,878,148.47 = 70,917,995.58/x
  3. Step 3: Cross multiply
    123,130,005.18x = 169,878,148.47 × 70,917,995.58
  4. Step 4: Simplify right side
    123,130,005.18x = 12,047,417,782,334,044
  5. Step 5: Solve for x
    x = 12,047,417,782,334,044/123,130,005.18
  6. Step 6: Final answer
    x = 97,843,070.54

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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.