Finding the Fourth Proportional to 429,031,875.91, 643,553,792.57 and 122,323,988.79
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Solution
The fourth proportional to 429,031,875.91, 643,553,792.57 and 122,323,988.79 is: 183,487,687.81
Step by Step Solution
- Step 1: Write the proportion equation
429,031,875.91 : 643,553,792.57 = 122,323,988.79 : x - Step 2: Convert to fraction form
429,031,875.91/643,553,792.57 = 122,323,988.79/x - Step 3: Cross multiply
429,031,875.91x = 643,553,792.57 × 122,323,988.79 - Step 4: Simplify right side
429,031,875.91x = 78,722,066,908,094,672 - Step 5: Solve for x
x = 78,722,066,908,094,672/429,031,875.91 - Step 6: Final answer
x = 183,487,687.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.