Home / 875,653,903.80-1,208,402,482.86-479,176,977.42

Finding the Fourth Proportional to 875,653,903.80, 1,208,402,482.86 and 479,176,977.42

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Solution

The fourth proportional to 875,653,903.80, 1,208,402,482.86 and 479,176,977.42 is: 661,264,281.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,653,903.80 : 1,208,402,482.86 = 479,176,977.42 : x
  2. Step 2: Convert to fraction form
    875,653,903.80/1,208,402,482.86 = 479,176,977.42/x
  3. Step 3: Cross multiply
    875,653,903.80x = 1,208,402,482.86 × 479,176,977.42
  4. Step 4: Simplify right side
    875,653,903.80x = 579,038,649,243,678,080
  5. Step 5: Solve for x
    x = 579,038,649,243,678,080/875,653,903.80
  6. Step 6: Final answer
    x = 661,264,281.16

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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.