Home / 870,107,298.36-1,200,777,075.72-488,696,547.39

Finding the Fourth Proportional to 870,107,298.36, 1,200,777,075.72 and 488,696,547.39

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Solution

The fourth proportional to 870,107,298.36, 1,200,777,075.72 and 488,696,547.39 is: 674,417,525.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,107,298.36 : 1,200,777,075.72 = 488,696,547.39 : x
  2. Step 2: Convert to fraction form
    870,107,298.36/1,200,777,075.72 = 488,696,547.39/x
  3. Step 3: Cross multiply
    870,107,298.36x = 1,200,777,075.72 × 488,696,547.39
  4. Step 4: Simplify right side
    870,107,298.36x = 586,815,611,089,424,640
  5. Step 5: Solve for x
    x = 586,815,611,089,424,640/870,107,298.36
  6. Step 6: Final answer
    x = 674,417,525.51

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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.