Finding the Fourth Proportional to 282,674,700.51, 390,085,492.84 and 157,224,197.87
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Solution
The fourth proportional to 282,674,700.51, 390,085,492.84 and 157,224,197.87 is: 216,966,281.74
Step by Step Solution
- Step 1: Write the proportion equation
282,674,700.51 : 390,085,492.84 = 157,224,197.87 : x - Step 2: Convert to fraction form
282,674,700.51/390,085,492.84 = 157,224,197.87/x - Step 3: Cross multiply
282,674,700.51x = 390,085,492.84 × 157,224,197.87 - Step 4: Simplify right side
282,674,700.51x = 61,330,878,712,492,624 - Step 5: Solve for x
x = 61,330,878,712,492,624/282,674,700.51 - Step 6: Final answer
x = 216,966,281.74
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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.