Home / 657,409,643.40-986,114,465.10-317,671,019.40

Finding the Fourth Proportional to 657,409,643.40, 986,114,465.10 and 317,671,019.40

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Solution

The fourth proportional to 657,409,643.40, 986,114,465.10 and 317,671,019.40 is: 476,506,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,409,643.40 : 986,114,465.10 = 317,671,019.40 : x
  2. Step 2: Convert to fraction form
    657,409,643.40/986,114,465.10 = 317,671,019.40/x
  3. Step 3: Cross multiply
    657,409,643.40x = 986,114,465.10 × 317,671,019.40
  4. Step 4: Simplify right side
    657,409,643.40x = 313,259,987,373,402,688
  5. Step 5: Solve for x
    x = 313,259,987,373,402,688/657,409,643.40
  6. Step 6: Final answer
    x = 476,506,529.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.