Home / 280,789,036.02-387,487,547.01-157,030,205.22

Finding the Fourth Proportional to 280,789,036.02, 387,487,547.01 and 157,030,205.22

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Solution

The fourth proportional to 280,789,036.02, 387,487,547.01 and 157,030,205.22 is: 216,700,943.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,789,036.02 : 387,487,547.01 = 157,030,205.22 : x
  2. Step 2: Convert to fraction form
    280,789,036.02/387,487,547.01 = 157,030,205.22/x
  3. Step 3: Cross multiply
    280,789,036.02x = 387,487,547.01 × 157,030,205.22
  4. Step 4: Simplify right side
    280,789,036.02x = 60,847,249,027,174,696
  5. Step 5: Solve for x
    x = 60,847,249,027,174,696/280,789,036.02
  6. Step 6: Final answer
    x = 216,700,943.49

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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.